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Finding the Fourth Proportional to 5,070.82, 6,981.58 and 4,472.80

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Solution

The fourth proportional to 5,070.82, 6,981.58 and 4,472.80 is: 6,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.82 : 6,981.58 = 4,472.80 : x
  2. Step 2: Convert to fraction form
    5,070.82/6,981.58 = 4,472.80/x
  3. Step 3: Cross multiply
    5,070.82x = 6,981.58 × 4,472.80
  4. Step 4: Simplify right side
    5,070.82x = 31,227,211.02
  5. Step 5: Solve for x
    x = 31,227,211.02/5,070.82
  6. Step 6: Final answer
    x = 6,158.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.