Home / 3,138,743.52-4,332,767.76-2,121,526.08

Finding the Fourth Proportional to 3,138,743.52, 4,332,767.76 and 2,121,526.08

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Solution

The fourth proportional to 3,138,743.52, 4,332,767.76 and 2,121,526.08 is: 2,928,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,743.52 : 4,332,767.76 = 2,121,526.08 : x
  2. Step 2: Convert to fraction form
    3,138,743.52/4,332,767.76 = 2,121,526.08/x
  3. Step 3: Cross multiply
    3,138,743.52x = 4,332,767.76 × 2,121,526.08
  4. Step 4: Simplify right side
    3,138,743.52x = 9,192,079,801,423.18
  5. Step 5: Solve for x
    x = 9,192,079,801,423.18/3,138,743.52
  6. Step 6: Final answer
    x = 2,928,585.83

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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.