Home / 2,225.35-3,340.02-1,186.21

Finding the Fourth Proportional to 2,225.35, 3,340.02 and 1,186.21

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Solution

The fourth proportional to 2,225.35, 3,340.02 and 1,186.21 is: 1,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.35 : 3,340.02 = 1,186.21 : x
  2. Step 2: Convert to fraction form
    2,225.35/3,340.02 = 1,186.21/x
  3. Step 3: Cross multiply
    2,225.35x = 3,340.02 × 1,186.21
  4. Step 4: Simplify right side
    2,225.35x = 3,961,965.12
  5. Step 5: Solve for x
    x = 3,961,965.12/2,225.35
  6. Step 6: Final answer
    x = 1,780.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.