Home / 7,470.64-11,207.12-2,540.56

Finding the Fourth Proportional to 7,470.64, 11,207.12 and 2,540.56

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Solution

The fourth proportional to 7,470.64, 11,207.12 and 2,540.56 is: 3,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.64 : 11,207.12 = 2,540.56 : x
  2. Step 2: Convert to fraction form
    7,470.64/11,207.12 = 2,540.56/x
  3. Step 3: Cross multiply
    7,470.64x = 11,207.12 × 2,540.56
  4. Step 4: Simplify right side
    7,470.64x = 28,472,360.79
  5. Step 5: Solve for x
    x = 28,472,360.79/7,470.64
  6. Step 6: Final answer
    x = 3,811.23

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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.