Home / 3,939,765.40-5,436,960.06-2,220,885.46

Finding the Fourth Proportional to 3,939,765.40, 5,436,960.06 and 2,220,885.46

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Solution

The fourth proportional to 3,939,765.40, 5,436,960.06 and 2,220,885.46 is: 3,064,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,765.40 : 5,436,960.06 = 2,220,885.46 : x
  2. Step 2: Convert to fraction form
    3,939,765.40/5,436,960.06 = 2,220,885.46/x
  3. Step 3: Cross multiply
    3,939,765.40x = 5,436,960.06 × 2,220,885.46
  4. Step 4: Simplify right side
    3,939,765.40x = 12,074,865,543,854.73
  5. Step 5: Solve for x
    x = 12,074,865,543,854.73/3,939,765.40
  6. Step 6: Final answer
    x = 3,064,869.18

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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.