Home / 5,126.04-7,689.02-1,428.29

Finding the Fourth Proportional to 5,126.04, 7,689.02 and 1,428.29

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Solution

The fourth proportional to 5,126.04, 7,689.02 and 1,428.29 is: 2,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.04 : 7,689.02 = 1,428.29 : x
  2. Step 2: Convert to fraction form
    5,126.04/7,689.02 = 1,428.29/x
  3. Step 3: Cross multiply
    5,126.04x = 7,689.02 × 1,428.29
  4. Step 4: Simplify right side
    5,126.04x = 10,982,104.79
  5. Step 5: Solve for x
    x = 10,982,104.79/5,126.04
  6. Step 6: Final answer
    x = 2,142.41

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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.