Home / 3,127.29-4,325.85-2,943.69

Finding the Fourth Proportional to 3,127.29, 4,325.85 and 2,943.69

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Solution

The fourth proportional to 3,127.29, 4,325.85 and 2,943.69 is: 4,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.29 : 4,325.85 = 2,943.69 : x
  2. Step 2: Convert to fraction form
    3,127.29/4,325.85 = 2,943.69/x
  3. Step 3: Cross multiply
    3,127.29x = 4,325.85 × 2,943.69
  4. Step 4: Simplify right side
    3,127.29x = 12,733,961.39
  5. Step 5: Solve for x
    x = 12,733,961.39/3,127.29
  6. Step 6: Final answer
    x = 4,071.88

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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.