Home / 1,332.27-1,837.92-1,225.65

Finding the Fourth Proportional to 1,332.27, 1,837.92 and 1,225.65

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Solution

The fourth proportional to 1,332.27, 1,837.92 and 1,225.65 is: 1,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.27 : 1,837.92 = 1,225.65 : x
  2. Step 2: Convert to fraction form
    1,332.27/1,837.92 = 1,225.65/x
  3. Step 3: Cross multiply
    1,332.27x = 1,837.92 × 1,225.65
  4. Step 4: Simplify right side
    1,332.27x = 2,252,646.65
  5. Step 5: Solve for x
    x = 2,252,646.65/1,332.27
  6. Step 6: Final answer
    x = 1,690.83

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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.