Home / 3,471.45-4,790.15-2,127.66

Finding the Fourth Proportional to 3,471.45, 4,790.15 and 2,127.66

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Solution

The fourth proportional to 3,471.45, 4,790.15 and 2,127.66 is: 2,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.45 : 4,790.15 = 2,127.66 : x
  2. Step 2: Convert to fraction form
    3,471.45/4,790.15 = 2,127.66/x
  3. Step 3: Cross multiply
    3,471.45x = 4,790.15 × 2,127.66
  4. Step 4: Simplify right side
    3,471.45x = 10,191,799.91
  5. Step 5: Solve for x
    x = 10,191,799.91/3,471.45
  6. Step 6: Final answer
    x = 2,935.89

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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.