Home / 2,121,988.85-2,928,344.97-1,155,126.48

Finding the Fourth Proportional to 2,121,988.85, 2,928,344.97 and 1,155,126.48

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Solution

The fourth proportional to 2,121,988.85, 2,928,344.97 and 1,155,126.48 is: 1,594,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,988.85 : 2,928,344.97 = 1,155,126.48 : x
  2. Step 2: Convert to fraction form
    2,121,988.85/2,928,344.97 = 1,155,126.48/x
  3. Step 3: Cross multiply
    2,121,988.85x = 2,928,344.97 × 1,155,126.48
  4. Step 4: Simplify right side
    2,121,988.85x = 3,382,608,810,772.24
  5. Step 5: Solve for x
    x = 3,382,608,810,772.24/2,121,988.85
  6. Step 6: Final answer
    x = 1,594,074.73

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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.