Home / 2,651.32-3,974.12-1,677.70

Finding the Fourth Proportional to 2,651.32, 3,974.12 and 1,677.70

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Solution

The fourth proportional to 2,651.32, 3,974.12 and 1,677.70 is: 2,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.32 : 3,974.12 = 1,677.70 : x
  2. Step 2: Convert to fraction form
    2,651.32/3,974.12 = 1,677.70/x
  3. Step 3: Cross multiply
    2,651.32x = 3,974.12 × 1,677.70
  4. Step 4: Simplify right side
    2,651.32x = 6,667,381.12
  5. Step 5: Solve for x
    x = 6,667,381.12/2,651.32
  6. Step 6: Final answer
    x = 2,514.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.