Home / 7,470.40-11,202.72-2,787.52

Finding the Fourth Proportional to 7,470.40, 11,202.72 and 2,787.52

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Solution

The fourth proportional to 7,470.40, 11,202.72 and 2,787.52 is: 4,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.40 : 11,202.72 = 2,787.52 : x
  2. Step 2: Convert to fraction form
    7,470.40/11,202.72 = 2,787.52/x
  3. Step 3: Cross multiply
    7,470.40x = 11,202.72 × 2,787.52
  4. Step 4: Simplify right side
    7,470.40x = 31,227,806.05
  5. Step 5: Solve for x
    x = 31,227,806.05/7,470.40
  6. Step 6: Final answer
    x = 4,180.21

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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.