Home / 2,225.48-3,071.22-1,294.28

Finding the Fourth Proportional to 2,225.48, 3,071.22 and 1,294.28

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Solution

The fourth proportional to 2,225.48, 3,071.22 and 1,294.28 is: 1,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.48 : 3,071.22 = 1,294.28 : x
  2. Step 2: Convert to fraction form
    2,225.48/3,071.22 = 1,294.28/x
  3. Step 3: Cross multiply
    2,225.48x = 3,071.22 × 1,294.28
  4. Step 4: Simplify right side
    2,225.48x = 3,975,018.62
  5. Step 5: Solve for x
    x = 3,975,018.62/2,225.48
  6. Step 6: Final answer
    x = 1,786.14

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Double scale
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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.