Home / 5,240.20-7,852.38-3,505.72

Finding the Fourth Proportional to 5,240.20, 7,852.38 and 3,505.72

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Solution

The fourth proportional to 5,240.20, 7,852.38 and 3,505.72 is: 5,253.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.20 : 7,852.38 = 3,505.72 : x
  2. Step 2: Convert to fraction form
    5,240.20/7,852.38 = 3,505.72/x
  3. Step 3: Cross multiply
    5,240.20x = 7,852.38 × 3,505.72
  4. Step 4: Simplify right side
    5,240.20x = 27,528,245.61
  5. Step 5: Solve for x
    x = 27,528,245.61/5,240.20
  6. Step 6: Final answer
    x = 5,253.28

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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.