Home / 1,649.25-2,275.98-1,125.27

Finding the Fourth Proportional to 1,649.25, 2,275.98 and 1,125.27

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Solution

The fourth proportional to 1,649.25, 2,275.98 and 1,125.27 is: 1,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.25 : 2,275.98 = 1,125.27 : x
  2. Step 2: Convert to fraction form
    1,649.25/2,275.98 = 1,125.27/x
  3. Step 3: Cross multiply
    1,649.25x = 2,275.98 × 1,125.27
  4. Step 4: Simplify right side
    1,649.25x = 2,561,092.01
  5. Step 5: Solve for x
    x = 2,561,092.01/1,649.25
  6. Step 6: Final answer
    x = 1,552.88

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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.