Home / 3,872,073.29-5,343,471.78-2,129,921.16

Finding the Fourth Proportional to 3,872,073.29, 5,343,471.78 and 2,129,921.16

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Solution

The fourth proportional to 3,872,073.29, 5,343,471.78 and 2,129,921.16 is: 2,939,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,073.29 : 5,343,471.78 = 2,129,921.16 : x
  2. Step 2: Convert to fraction form
    3,872,073.29/5,343,471.78 = 2,129,921.16/x
  3. Step 3: Cross multiply
    3,872,073.29x = 5,343,471.78 × 2,129,921.16
  4. Step 4: Simplify right side
    3,872,073.29x = 11,381,173,647,116.39
  5. Step 5: Solve for x
    x = 11,381,173,647,116.39/3,872,073.29
  6. Step 6: Final answer
    x = 2,939,297.06

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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.