Home / 5,148.12-7,101.50-3,157.96

Finding the Fourth Proportional to 5,148.12, 7,101.50 and 3,157.96

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Solution

The fourth proportional to 5,148.12, 7,101.50 and 3,157.96 is: 4,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.12 : 7,101.50 = 3,157.96 : x
  2. Step 2: Convert to fraction form
    5,148.12/7,101.50 = 3,157.96/x
  3. Step 3: Cross multiply
    5,148.12x = 7,101.50 × 3,157.96
  4. Step 4: Simplify right side
    5,148.12x = 22,426,252.94
  5. Step 5: Solve for x
    x = 22,426,252.94/5,148.12
  6. Step 6: Final answer
    x = 4,356.20

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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.