Home / 5,089.28-7,633.98-1,391.81

Finding the Fourth Proportional to 5,089.28, 7,633.98 and 1,391.81

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Solution

The fourth proportional to 5,089.28, 7,633.98 and 1,391.81 is: 2,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.28 : 7,633.98 = 1,391.81 : x
  2. Step 2: Convert to fraction form
    5,089.28/7,633.98 = 1,391.81/x
  3. Step 3: Cross multiply
    5,089.28x = 7,633.98 × 1,391.81
  4. Step 4: Simplify right side
    5,089.28x = 10,625,011.53
  5. Step 5: Solve for x
    x = 10,625,011.53/5,089.28
  6. Step 6: Final answer
    x = 2,087.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.