Home / 5,642.55-8,445.20-5,239.17

Finding the Fourth Proportional to 5,642.55, 8,445.20 and 5,239.17

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Solution

The fourth proportional to 5,642.55, 8,445.20 and 5,239.17 is: 7,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.55 : 8,445.20 = 5,239.17 : x
  2. Step 2: Convert to fraction form
    5,642.55/8,445.20 = 5,239.17/x
  3. Step 3: Cross multiply
    5,642.55x = 8,445.20 × 5,239.17
  4. Step 4: Simplify right side
    5,642.55x = 44,245,812.29
  5. Step 5: Solve for x
    x = 44,245,812.29/5,642.55
  6. Step 6: Final answer
    x = 7,841.46

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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.