Home / 3,689,122.32-5,091,433.00-2,161,229.45

Finding the Fourth Proportional to 3,689,122.32, 5,091,433.00 and 2,161,229.45

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Solution

The fourth proportional to 3,689,122.32, 5,091,433.00 and 2,161,229.45 is: 2,982,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689,122.32 : 5,091,433.00 = 2,161,229.45 : x
  2. Step 2: Convert to fraction form
    3,689,122.32/5,091,433.00 = 2,161,229.45/x
  3. Step 3: Cross multiply
    3,689,122.32x = 5,091,433.00 × 2,161,229.45
  4. Step 4: Simplify right side
    3,689,122.32x = 11,003,754,911,441.61
  5. Step 5: Solve for x
    x = 11,003,754,911,441.61/3,689,122.32
  6. Step 6: Final answer
    x = 2,982,756.86

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Double scale
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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.