Home / 1,631.53-2,251.56-1,189.27

Finding the Fourth Proportional to 1,631.53, 2,251.56 and 1,189.27

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Solution

The fourth proportional to 1,631.53, 2,251.56 and 1,189.27 is: 1,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.53 : 2,251.56 = 1,189.27 : x
  2. Step 2: Convert to fraction form
    1,631.53/2,251.56 = 1,189.27/x
  3. Step 3: Cross multiply
    1,631.53x = 2,251.56 × 1,189.27
  4. Step 4: Simplify right side
    1,631.53x = 2,677,712.76
  5. Step 5: Solve for x
    x = 2,677,712.76/1,631.53
  6. Step 6: Final answer
    x = 1,641.23

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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.