Home / 1,631.88-2,253.12-1,101.57

Finding the Fourth Proportional to 1,631.88, 2,253.12 and 1,101.57

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Solution

The fourth proportional to 1,631.88, 2,253.12 and 1,101.57 is: 1,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.88 : 2,253.12 = 1,101.57 : x
  2. Step 2: Convert to fraction form
    1,631.88/2,253.12 = 1,101.57/x
  3. Step 3: Cross multiply
    1,631.88x = 2,253.12 × 1,101.57
  4. Step 4: Simplify right side
    1,631.88x = 2,481,969.40
  5. Step 5: Solve for x
    x = 2,481,969.40/1,631.88
  6. Step 6: Final answer
    x = 1,520.93

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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.