Home / 7,639.40-10,542.24-4,282.29

Finding the Fourth Proportional to 7,639.40, 10,542.24 and 4,282.29

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Solution

The fourth proportional to 7,639.40, 10,542.24 and 4,282.29 is: 5,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.40 : 10,542.24 = 4,282.29 : x
  2. Step 2: Convert to fraction form
    7,639.40/10,542.24 = 4,282.29/x
  3. Step 3: Cross multiply
    7,639.40x = 10,542.24 × 4,282.29
  4. Step 4: Simplify right side
    7,639.40x = 45,144,928.93
  5. Step 5: Solve for x
    x = 45,144,928.93/7,639.40
  6. Step 6: Final answer
    x = 5,909.48

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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.