Home / 2,070,287.07-2,859,387.40-1,380,760.91

Finding the Fourth Proportional to 2,070,287.07, 2,859,387.40 and 1,380,760.91

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Solution

The fourth proportional to 2,070,287.07, 2,859,387.40 and 1,380,760.91 is: 1,907,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070,287.07 : 2,859,387.40 = 1,380,760.91 : x
  2. Step 2: Convert to fraction form
    2,070,287.07/2,859,387.40 = 1,380,760.91/x
  3. Step 3: Cross multiply
    2,070,287.07x = 2,859,387.40 × 1,380,760.91
  4. Step 4: Simplify right side
    2,070,287.07x = 3,948,130,327,265.79
  5. Step 5: Solve for x
    x = 3,948,130,327,265.79/2,070,287.07
  6. Step 6: Final answer
    x = 1,907,044.87

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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.