Home / 7,087.22-9,793.85-5,315.75

Finding the Fourth Proportional to 7,087.22, 9,793.85 and 5,315.75

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Solution

The fourth proportional to 7,087.22, 9,793.85 and 5,315.75 is: 7,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.22 : 9,793.85 = 5,315.75 : x
  2. Step 2: Convert to fraction form
    7,087.22/9,793.85 = 5,315.75/x
  3. Step 3: Cross multiply
    7,087.22x = 9,793.85 × 5,315.75
  4. Step 4: Simplify right side
    7,087.22x = 52,061,658.14
  5. Step 5: Solve for x
    x = 52,061,658.14/7,087.22
  6. Step 6: Final answer
    x = 7,345.85

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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.