Home / 5,242.17-7,862.00-1,543.40

Finding the Fourth Proportional to 5,242.17, 7,862.00 and 1,543.40

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Solution

The fourth proportional to 5,242.17, 7,862.00 and 1,543.40 is: 2,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.17 : 7,862.00 = 1,543.40 : x
  2. Step 2: Convert to fraction form
    5,242.17/7,862.00 = 1,543.40/x
  3. Step 3: Cross multiply
    5,242.17x = 7,862.00 × 1,543.40
  4. Step 4: Simplify right side
    5,242.17x = 12,134,163.77
  5. Step 5: Solve for x
    x = 12,134,163.77/5,242.17
  6. Step 6: Final answer
    x = 2,314.72

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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.