Home / 7,041.60-9,717.30-3,897.90

Finding the Fourth Proportional to 7,041.60, 9,717.30 and 3,897.90

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Solution

The fourth proportional to 7,041.60, 9,717.30 and 3,897.90 is: 5,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.60 : 9,717.30 = 3,897.90 : x
  2. Step 2: Convert to fraction form
    7,041.60/9,717.30 = 3,897.90/x
  3. Step 3: Cross multiply
    7,041.60x = 9,717.30 × 3,897.90
  4. Step 4: Simplify right side
    7,041.60x = 37,877,063.67
  5. Step 5: Solve for x
    x = 37,877,063.67/7,041.60
  6. Step 6: Final answer
    x = 5,379.04

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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.