Home / 2,631.85-3,948.92-1,246.17

Finding the Fourth Proportional to 2,631.85, 3,948.92 and 1,246.17

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Solution

The fourth proportional to 2,631.85, 3,948.92 and 1,246.17 is: 1,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.85 : 3,948.92 = 1,246.17 : x
  2. Step 2: Convert to fraction form
    2,631.85/3,948.92 = 1,246.17/x
  3. Step 3: Cross multiply
    2,631.85x = 3,948.92 × 1,246.17
  4. Step 4: Simplify right side
    2,631.85x = 4,921,028.75
  5. Step 5: Solve for x
    x = 4,921,028.75/2,631.85
  6. Step 6: Final answer
    x = 1,869.80

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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.