Home / 2,225.19-3,071.37-1,385.39

Finding the Fourth Proportional to 2,225.19, 3,071.37 and 1,385.39

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Solution

The fourth proportional to 2,225.19, 3,071.37 and 1,385.39 is: 1,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.19 : 3,071.37 = 1,385.39 : x
  2. Step 2: Convert to fraction form
    2,225.19/3,071.37 = 1,385.39/x
  3. Step 3: Cross multiply
    2,225.19x = 3,071.37 × 1,385.39
  4. Step 4: Simplify right side
    2,225.19x = 4,255,045.28
  5. Step 5: Solve for x
    x = 4,255,045.28/2,225.19
  6. Step 6: Final answer
    x = 1,912.22

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,226.19, 3,072.75 and 1,386.39
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.