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Finding the Fourth Proportional to 1,787.74, 2,465.20 and 1,414.12

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Solution

The fourth proportional to 1,787.74, 2,465.20 and 1,414.12 is: 1,950.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.74 : 2,465.20 = 1,414.12 : x
  2. Step 2: Convert to fraction form
    1,787.74/2,465.20 = 1,414.12/x
  3. Step 3: Cross multiply
    1,787.74x = 2,465.20 × 1,414.12
  4. Step 4: Simplify right side
    1,787.74x = 3,486,088.62
  5. Step 5: Solve for x
    x = 3,486,088.62/1,787.74
  6. Step 6: Final answer
    x = 1,950.00

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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.