Home / 6,857.46-9,462.18-3,872.61

Finding the Fourth Proportional to 6,857.46, 9,462.18 and 3,872.61

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Solution

The fourth proportional to 6,857.46, 9,462.18 and 3,872.61 is: 5,343.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857.46 : 9,462.18 = 3,872.61 : x
  2. Step 2: Convert to fraction form
    6,857.46/9,462.18 = 3,872.61/x
  3. Step 3: Cross multiply
    6,857.46x = 9,462.18 × 3,872.61
  4. Step 4: Simplify right side
    6,857.46x = 36,643,332.89
  5. Step 5: Solve for x
    x = 36,643,332.89/6,857.46
  6. Step 6: Final answer
    x = 5,343.57

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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.