Home / 2,551.38-3,520.74-2,177.76

Finding the Fourth Proportional to 2,551.38, 3,520.74 and 2,177.76

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Solution

The fourth proportional to 2,551.38, 3,520.74 and 2,177.76 is: 3,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.38 : 3,520.74 = 2,177.76 : x
  2. Step 2: Convert to fraction form
    2,551.38/3,520.74 = 2,177.76/x
  3. Step 3: Cross multiply
    2,551.38x = 3,520.74 × 2,177.76
  4. Step 4: Simplify right side
    2,551.38x = 7,667,326.74
  5. Step 5: Solve for x
    x = 7,667,326.74/2,551.38
  6. Step 6: Final answer
    x = 3,005.17

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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.