Home / 7,400.80-11,102.02-2,470.78

Finding the Fourth Proportional to 7,400.80, 11,102.02 and 2,470.78

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Solution

The fourth proportional to 7,400.80, 11,102.02 and 2,470.78 is: 3,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.80 : 11,102.02 = 2,470.78 : x
  2. Step 2: Convert to fraction form
    7,400.80/11,102.02 = 2,470.78/x
  3. Step 3: Cross multiply
    7,400.80x = 11,102.02 × 2,470.78
  4. Step 4: Simplify right side
    7,400.80x = 27,430,648.98
  5. Step 5: Solve for x
    x = 27,430,648.98/7,400.80
  6. Step 6: Final answer
    x = 3,706.44

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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.