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Finding the Fourth Proportional to 5,358.40, 7,394.22 and 3,589.72

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Solution

The fourth proportional to 5,358.40, 7,394.22 and 3,589.72 is: 4,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.40 : 7,394.22 = 3,589.72 : x
  2. Step 2: Convert to fraction form
    5,358.40/7,394.22 = 3,589.72/x
  3. Step 3: Cross multiply
    5,358.40x = 7,394.22 × 3,589.72
  4. Step 4: Simplify right side
    5,358.40x = 26,543,179.42
  5. Step 5: Solve for x
    x = 26,543,179.42/5,358.40
  6. Step 6: Final answer
    x = 4,953.56

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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.