Home / 1,146.43-1,582.14-674.70

Finding the Fourth Proportional to 1,146.43, 1,582.14 and 674.70

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Solution

The fourth proportional to 1,146.43, 1,582.14 and 674.70 is: 931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.43 : 1,582.14 = 674.70 : x
  2. Step 2: Convert to fraction form
    1,146.43/1,582.14 = 674.70/x
  3. Step 3: Cross multiply
    1,146.43x = 1,582.14 × 674.70
  4. Step 4: Simplify right side
    1,146.43x = 1,067,469.86
  5. Step 5: Solve for x
    x = 1,067,469.86/1,146.43
  6. Step 6: Final answer
    x = 931.13

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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.