Home / 7,585.52-11,381.46-3,638.90

Finding the Fourth Proportional to 7,585.52, 11,381.46 and 3,638.90

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Solution

The fourth proportional to 7,585.52, 11,381.46 and 3,638.90 is: 5,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,585.52 : 11,381.46 = 3,638.90 : x
  2. Step 2: Convert to fraction form
    7,585.52/11,381.46 = 3,638.90/x
  3. Step 3: Cross multiply
    7,585.52x = 11,381.46 × 3,638.90
  4. Step 4: Simplify right side
    7,585.52x = 41,415,937.89
  5. Step 5: Solve for x
    x = 41,415,937.89/7,585.52
  6. Step 6: Final answer
    x = 5,459.87

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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.