Home / 1,492.20-2,237.90-1,246.97

Finding the Fourth Proportional to 1,492.20, 2,237.90 and 1,246.97

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Solution

The fourth proportional to 1,492.20, 2,237.90 and 1,246.97 is: 1,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.20 : 2,237.90 = 1,246.97 : x
  2. Step 2: Convert to fraction form
    1,492.20/2,237.90 = 1,246.97/x
  3. Step 3: Cross multiply
    1,492.20x = 2,237.90 × 1,246.97
  4. Step 4: Simplify right side
    1,492.20x = 2,790,593.52
  5. Step 5: Solve for x
    x = 2,790,593.52/1,492.20
  6. Step 6: Final answer
    x = 1,870.12

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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.