Home / 1,230.57-1,836.68-1,132.92

Finding the Fourth Proportional to 1,230.57, 1,836.68 and 1,132.92

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Solution

The fourth proportional to 1,230.57, 1,836.68 and 1,132.92 is: 1,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.57 : 1,836.68 = 1,132.92 : x
  2. Step 2: Convert to fraction form
    1,230.57/1,836.68 = 1,132.92/x
  3. Step 3: Cross multiply
    1,230.57x = 1,836.68 × 1,132.92
  4. Step 4: Simplify right side
    1,230.57x = 2,080,805.84
  5. Step 5: Solve for x
    x = 2,080,805.84/1,230.57
  6. Step 6: Final answer
    x = 1,690.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.