Home / 1,649.66-2,275.97-1,177.61

Finding the Fourth Proportional to 1,649.66, 2,275.97 and 1,177.61

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Solution

The fourth proportional to 1,649.66, 2,275.97 and 1,177.61 is: 1,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.66 : 2,275.97 = 1,177.61 : x
  2. Step 2: Convert to fraction form
    1,649.66/2,275.97 = 1,177.61/x
  3. Step 3: Cross multiply
    1,649.66x = 2,275.97 × 1,177.61
  4. Step 4: Simplify right side
    1,649.66x = 2,680,187.76
  5. Step 5: Solve for x
    x = 2,680,187.76/1,649.66
  6. Step 6: Final answer
    x = 1,624.70

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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.