Home / 1,526.98-2,290.90-787.13

Finding the Fourth Proportional to 1,526.98, 2,290.90 and 787.13

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Solution

The fourth proportional to 1,526.98, 2,290.90 and 787.13 is: 1,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.98 : 2,290.90 = 787.13 : x
  2. Step 2: Convert to fraction form
    1,526.98/2,290.90 = 787.13/x
  3. Step 3: Cross multiply
    1,526.98x = 2,290.90 × 787.13
  4. Step 4: Simplify right side
    1,526.98x = 1,803,243.03
  5. Step 5: Solve for x
    x = 1,803,243.03/1,526.98
  6. Step 6: Final answer
    x = 1,180.92

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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.