Home / 2,129,585.68-3,191,146.30-1,561,345.03

Finding the Fourth Proportional to 2,129,585.68, 3,191,146.30 and 1,561,345.03

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Solution

The fourth proportional to 2,129,585.68, 3,191,146.30 and 1,561,345.03 is: 2,339,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,585.68 : 3,191,146.30 = 1,561,345.03 : x
  2. Step 2: Convert to fraction form
    2,129,585.68/3,191,146.30 = 1,561,345.03/x
  3. Step 3: Cross multiply
    2,129,585.68x = 3,191,146.30 × 1,561,345.03
  4. Step 4: Simplify right side
    2,129,585.68x = 4,982,480,415,507.89
  5. Step 5: Solve for x
    x = 4,982,480,415,507.89/2,129,585.68
  6. Step 6: Final answer
    x = 2,339,647.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.