Home / 1,631.09-2,250.75-922.85

Finding the Fourth Proportional to 1,631.09, 2,250.75 and 922.85

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Solution

The fourth proportional to 1,631.09, 2,250.75 and 922.85 is: 1,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.09 : 2,250.75 = 922.85 : x
  2. Step 2: Convert to fraction form
    1,631.09/2,250.75 = 922.85/x
  3. Step 3: Cross multiply
    1,631.09x = 2,250.75 × 922.85
  4. Step 4: Simplify right side
    1,631.09x = 2,077,105.28
  5. Step 5: Solve for x
    x = 2,077,105.28/1,631.09
  6. Step 6: Final answer
    x = 1,273.44

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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.