Home / 3,871,999.38-5,343,488.98-2,129,742.48

Finding the Fourth Proportional to 3,871,999.38, 5,343,488.98 and 2,129,742.48

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Solution

The fourth proportional to 3,871,999.38, 5,343,488.98 and 2,129,742.48 is: 2,939,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,999.38 : 5,343,488.98 = 2,129,742.48 : x
  2. Step 2: Convert to fraction form
    3,871,999.38/5,343,488.98 = 2,129,742.48/x
  3. Step 3: Cross multiply
    3,871,999.38x = 5,343,488.98 × 2,129,742.48
  4. Step 4: Simplify right side
    3,871,999.38x = 11,380,255,472,117.87
  5. Step 5: Solve for x
    x = 11,380,255,472,117.87/3,871,999.38
  6. Step 6: Final answer
    x = 2,939,116.04

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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.