Home / 3,171,869.75-4,377,185.06-1,721,565.72

Finding the Fourth Proportional to 3,171,869.75, 4,377,185.06 and 1,721,565.72

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Solution

The fourth proportional to 3,171,869.75, 4,377,185.06 and 1,721,565.72 is: 2,375,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,869.75 : 4,377,185.06 = 1,721,565.72 : x
  2. Step 2: Convert to fraction form
    3,171,869.75/4,377,185.06 = 1,721,565.72/x
  3. Step 3: Cross multiply
    3,171,869.75x = 4,377,185.06 × 1,721,565.72
  4. Step 4: Simplify right side
    3,171,869.75x = 7,535,611,731,810.13
  5. Step 5: Solve for x
    x = 7,535,611,731,810.13/3,171,869.75
  6. Step 6: Final answer
    x = 2,375,763.30

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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.