Home / 3,127.84-4,318.20-3,003.92

Finding the Fourth Proportional to 3,127.84, 4,318.20 and 3,003.92

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Solution

The fourth proportional to 3,127.84, 4,318.20 and 3,003.92 is: 4,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.84 : 4,318.20 = 3,003.92 : x
  2. Step 2: Convert to fraction form
    3,127.84/4,318.20 = 3,003.92/x
  3. Step 3: Cross multiply
    3,127.84x = 4,318.20 × 3,003.92
  4. Step 4: Simplify right side
    3,127.84x = 12,971,527.34
  5. Step 5: Solve for x
    x = 12,971,527.34/3,127.84
  6. Step 6: Final answer
    x = 4,147.12

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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.