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Finding the Fourth Proportional to 7,010.60, 10,501.80 and 3,489.98

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Solution

The fourth proportional to 7,010.60, 10,501.80 and 3,489.98 is: 5,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.60 : 10,501.80 = 3,489.98 : x
  2. Step 2: Convert to fraction form
    7,010.60/10,501.80 = 3,489.98/x
  3. Step 3: Cross multiply
    7,010.60x = 10,501.80 × 3,489.98
  4. Step 4: Simplify right side
    7,010.60x = 36,651,071.96
  5. Step 5: Solve for x
    x = 36,651,071.96/7,010.60
  6. Step 6: Final answer
    x = 5,227.95

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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.