Home / 2,121,988.29-2,928,344.20-1,155,125.91

Finding the Fourth Proportional to 2,121,988.29, 2,928,344.20 and 1,155,125.91

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Solution

The fourth proportional to 2,121,988.29, 2,928,344.20 and 1,155,125.91 is: 1,594,073.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,988.29 : 2,928,344.20 = 1,155,125.91 : x
  2. Step 2: Convert to fraction form
    2,121,988.29/2,928,344.20 = 1,155,125.91/x
  3. Step 3: Cross multiply
    2,121,988.29x = 2,928,344.20 × 1,155,125.91
  4. Step 4: Simplify right side
    2,121,988.29x = 3,382,606,266,911.70
  5. Step 5: Solve for x
    x = 3,382,606,266,911.70/2,121,988.29
  6. Step 6: Final answer
    x = 1,594,073.96

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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.