Home / 3,861,019.80-5,328,846.90-2,142,692.28

Finding the Fourth Proportional to 3,861,019.80, 5,328,846.90 and 2,142,692.28

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Solution

The fourth proportional to 3,861,019.80, 5,328,846.90 and 2,142,692.28 is: 2,957,270.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861,019.80 : 5,328,846.90 = 2,142,692.28 : x
  2. Step 2: Convert to fraction form
    3,861,019.80/5,328,846.90 = 2,142,692.28/x
  3. Step 3: Cross multiply
    3,861,019.80x = 5,328,846.90 × 2,142,692.28
  4. Step 4: Simplify right side
    3,861,019.80x = 11,418,079,113,931.93
  5. Step 5: Solve for x
    x = 11,418,079,113,931.93/3,861,019.80
  6. Step 6: Final answer
    x = 2,957,270.28

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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.