Home / 3,121,074-4,307,082.12-1,690,290

Finding the Fourth Proportional to 3,121,074, 4,307,082.12 and 1,690,290

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Solution

The fourth proportional to 3,121,074, 4,307,082.12 and 1,690,290 is: 2,332,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,074 : 4,307,082.12 = 1,690,290 : x
  2. Step 2: Convert to fraction form
    3,121,074/4,307,082.12 = 1,690,290/x
  3. Step 3: Cross multiply
    3,121,074x = 4,307,082.12 × 1,690,290
  4. Step 4: Simplify right side
    3,121,074x = 7,280,217,836,614.80
  5. Step 5: Solve for x
    x = 7,280,217,836,614.80/3,121,074
  6. Step 6: Final answer
    x = 2,332,600.20

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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.