Home / 6,942.55-9,580.97-3,957.90

Finding the Fourth Proportional to 6,942.55, 9,580.97 and 3,957.90

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Solution

The fourth proportional to 6,942.55, 9,580.97 and 3,957.90 is: 5,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.55 : 9,580.97 = 3,957.90 : x
  2. Step 2: Convert to fraction form
    6,942.55/9,580.97 = 3,957.90/x
  3. Step 3: Cross multiply
    6,942.55x = 9,580.97 × 3,957.90
  4. Step 4: Simplify right side
    6,942.55x = 37,920,521.16
  5. Step 5: Solve for x
    x = 37,920,521.16/6,942.55
  6. Step 6: Final answer
    x = 5,462.05

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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.