Home / 3,177.42-4,384.82-1,780.17

Finding the Fourth Proportional to 3,177.42, 4,384.82 and 1,780.17

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Solution

The fourth proportional to 3,177.42, 4,384.82 and 1,780.17 is: 2,456.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.42 : 4,384.82 = 1,780.17 : x
  2. Step 2: Convert to fraction form
    3,177.42/4,384.82 = 1,780.17/x
  3. Step 3: Cross multiply
    3,177.42x = 4,384.82 × 1,780.17
  4. Step 4: Simplify right side
    3,177.42x = 7,805,703.10
  5. Step 5: Solve for x
    x = 7,805,703.10/3,177.42
  6. Step 6: Final answer
    x = 2,456.62

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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.