Home / 3,871,613.20-5,342,887.32-2,129,358.28

Finding the Fourth Proportional to 3,871,613.20, 5,342,887.32 and 2,129,358.28

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Solution

The fourth proportional to 3,871,613.20, 5,342,887.32 and 2,129,358.28 is: 2,938,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,613.20 : 5,342,887.32 = 2,129,358.28 : x
  2. Step 2: Convert to fraction form
    3,871,613.20/5,342,887.32 = 2,129,358.28/x
  3. Step 3: Cross multiply
    3,871,613.20x = 5,342,887.32 × 2,129,358.28
  4. Step 4: Simplify right side
    3,871,613.20x = 11,376,921,353,949.01
  5. Step 5: Solve for x
    x = 11,376,921,353,949.01/3,871,613.20
  6. Step 6: Final answer
    x = 2,938,548.03

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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.