Home / 1,932.30-2,666.39-1,146.20

Finding the Fourth Proportional to 1,932.30, 2,666.39 and 1,146.20

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Solution

The fourth proportional to 1,932.30, 2,666.39 and 1,146.20 is: 1,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.30 : 2,666.39 = 1,146.20 : x
  2. Step 2: Convert to fraction form
    1,932.30/2,666.39 = 1,146.20/x
  3. Step 3: Cross multiply
    1,932.30x = 2,666.39 × 1,146.20
  4. Step 4: Simplify right side
    1,932.30x = 3,056,197.16
  5. Step 5: Solve for x
    x = 3,056,197.16/1,932.30
  6. Step 6: Final answer
    x = 1,581.64

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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.