Home / 5,387.24-7,434.68-3,150.42

Finding the Fourth Proportional to 5,387.24, 7,434.68 and 3,150.42

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Solution

The fourth proportional to 5,387.24, 7,434.68 and 3,150.42 is: 4,347.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.24 : 7,434.68 = 3,150.42 : x
  2. Step 2: Convert to fraction form
    5,387.24/7,434.68 = 3,150.42/x
  3. Step 3: Cross multiply
    5,387.24x = 7,434.68 × 3,150.42
  4. Step 4: Simplify right side
    5,387.24x = 23,422,348.81
  5. Step 5: Solve for x
    x = 23,422,348.81/5,387.24
  6. Step 6: Final answer
    x = 4,347.75

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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.