Home / 2,612.41-3,916.99-1,225.15

Finding the Fourth Proportional to 2,612.41, 3,916.99 and 1,225.15

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Solution

The fourth proportional to 2,612.41, 3,916.99 and 1,225.15 is: 1,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.41 : 3,916.99 = 1,225.15 : x
  2. Step 2: Convert to fraction form
    2,612.41/3,916.99 = 1,225.15/x
  3. Step 3: Cross multiply
    2,612.41x = 3,916.99 × 1,225.15
  4. Step 4: Simplify right side
    2,612.41x = 4,798,892.04
  5. Step 5: Solve for x
    x = 4,798,892.04/2,612.41
  6. Step 6: Final answer
    x = 1,836.96

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.