Home / 5,148.40-7,102.08-3,969.04

Finding the Fourth Proportional to 5,148.40, 7,102.08 and 3,969.04

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Solution

The fourth proportional to 5,148.40, 7,102.08 and 3,969.04 is: 5,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.40 : 7,102.08 = 3,969.04 : x
  2. Step 2: Convert to fraction form
    5,148.40/7,102.08 = 3,969.04/x
  3. Step 3: Cross multiply
    5,148.40x = 7,102.08 × 3,969.04
  4. Step 4: Simplify right side
    5,148.40x = 28,188,439.60
  5. Step 5: Solve for x
    x = 28,188,439.60/5,148.40
  6. Step 6: Final answer
    x = 5,475.18

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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.