Home / 1,660.89-2,492.25-621.61

Finding the Fourth Proportional to 1,660.89, 2,492.25 and 621.61

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Solution

The fourth proportional to 1,660.89, 2,492.25 and 621.61 is: 932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.89 : 2,492.25 = 621.61 : x
  2. Step 2: Convert to fraction form
    1,660.89/2,492.25 = 621.61/x
  3. Step 3: Cross multiply
    1,660.89x = 2,492.25 × 621.61
  4. Step 4: Simplify right side
    1,660.89x = 1,549,207.52
  5. Step 5: Solve for x
    x = 1,549,207.52/1,660.89
  6. Step 6: Final answer
    x = 932.76

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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.