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Finding the Fourth Proportional to 5,281.32, 7,288.02 and 2,923.42

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Solution

The fourth proportional to 5,281.32, 7,288.02 and 2,923.42 is: 4,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.32 : 7,288.02 = 2,923.42 : x
  2. Step 2: Convert to fraction form
    5,281.32/7,288.02 = 2,923.42/x
  3. Step 3: Cross multiply
    5,281.32x = 7,288.02 × 2,923.42
  4. Step 4: Simplify right side
    5,281.32x = 21,305,943.43
  5. Step 5: Solve for x
    x = 21,305,943.43/5,281.32
  6. Step 6: Final answer
    x = 4,034.21

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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.