Home / 1,711.29-2,568.27-787.26

Finding the Fourth Proportional to 1,711.29, 2,568.27 and 787.26

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Solution

The fourth proportional to 1,711.29, 2,568.27 and 787.26 is: 1,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.29 : 2,568.27 = 787.26 : x
  2. Step 2: Convert to fraction form
    1,711.29/2,568.27 = 787.26/x
  3. Step 3: Cross multiply
    1,711.29x = 2,568.27 × 787.26
  4. Step 4: Simplify right side
    1,711.29x = 2,021,896.24
  5. Step 5: Solve for x
    x = 2,021,896.24/1,711.29
  6. Step 6: Final answer
    x = 1,181.50

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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.