Home / 5,398.28-7,448.96-3,159.64

Finding the Fourth Proportional to 5,398.28, 7,448.96 and 3,159.64

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Solution

The fourth proportional to 5,398.28, 7,448.96 and 3,159.64 is: 4,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.28 : 7,448.96 = 3,159.64 : x
  2. Step 2: Convert to fraction form
    5,398.28/7,448.96 = 3,159.64/x
  3. Step 3: Cross multiply
    5,398.28x = 7,448.96 × 3,159.64
  4. Step 4: Simplify right side
    5,398.28x = 23,536,049.18
  5. Step 5: Solve for x
    x = 23,536,049.18/5,398.28
  6. Step 6: Final answer
    x = 4,359.92

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1.5x scale

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.