Home / 7,639.27-10,542.70-4,282.31

Finding the Fourth Proportional to 7,639.27, 10,542.70 and 4,282.31

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Solution

The fourth proportional to 7,639.27, 10,542.70 and 4,282.31 is: 5,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.27 : 10,542.70 = 4,282.31 : x
  2. Step 2: Convert to fraction form
    7,639.27/10,542.70 = 4,282.31/x
  3. Step 3: Cross multiply
    7,639.27x = 10,542.70 × 4,282.31
  4. Step 4: Simplify right side
    7,639.27x = 45,147,109.64
  5. Step 5: Solve for x
    x = 45,147,109.64/7,639.27
  6. Step 6: Final answer
    x = 5,909.87

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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.