Home / 2,125,397.10-3,189,079.80-1,115,659.20

Finding the Fourth Proportional to 2,125,397.10, 3,189,079.80 and 1,115,659.20

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Solution

The fourth proportional to 2,125,397.10, 3,189,079.80 and 1,115,659.20 is: 1,674,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,397.10 : 3,189,079.80 = 1,115,659.20 : x
  2. Step 2: Convert to fraction form
    2,125,397.10/3,189,079.80 = 1,115,659.20/x
  3. Step 3: Cross multiply
    2,125,397.10x = 3,189,079.80 × 1,115,659.20
  4. Step 4: Simplify right side
    2,125,397.10x = 3,557,926,218,404.16
  5. Step 5: Solve for x
    x = 3,557,926,218,404.16/2,125,397.10
  6. Step 6: Final answer
    x = 1,674,005.40

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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.