Home / 3,543.90-5,316.24-947.04

Finding the Fourth Proportional to 3,543.90, 5,316.24 and 947.04

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Solution

The fourth proportional to 3,543.90, 5,316.24 and 947.04 is: 1,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.90 : 5,316.24 = 947.04 : x
  2. Step 2: Convert to fraction form
    3,543.90/5,316.24 = 947.04/x
  3. Step 3: Cross multiply
    3,543.90x = 5,316.24 × 947.04
  4. Step 4: Simplify right side
    3,543.90x = 5,034,691.93
  5. Step 5: Solve for x
    x = 5,034,691.93/3,543.90
  6. Step 6: Final answer
    x = 1,420.66

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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.