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Finding the Fourth Proportional to 5,123.58, 7,065 and 4,454.52

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Solution

The fourth proportional to 5,123.58, 7,065 and 4,454.52 is: 6,142.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.58 : 7,065 = 4,454.52 : x
  2. Step 2: Convert to fraction form
    5,123.58/7,065 = 4,454.52/x
  3. Step 3: Cross multiply
    5,123.58x = 7,065 × 4,454.52
  4. Step 4: Simplify right side
    5,123.58x = 31,471,183.80
  5. Step 5: Solve for x
    x = 31,471,183.80/5,123.58
  6. Step 6: Final answer
    x = 6,142.42

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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.