Home / 2,891,389.47-3,990,140.91-1,602,251.39

Finding the Fourth Proportional to 2,891,389.47, 3,990,140.91 and 1,602,251.39

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Solution

The fourth proportional to 2,891,389.47, 3,990,140.91 and 1,602,251.39 is: 2,211,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,389.47 : 3,990,140.91 = 1,602,251.39 : x
  2. Step 2: Convert to fraction form
    2,891,389.47/3,990,140.91 = 1,602,251.39/x
  3. Step 3: Cross multiply
    2,891,389.47x = 3,990,140.91 × 1,602,251.39
  4. Step 4: Simplify right side
    2,891,389.47x = 6,393,208,799,392.66
  5. Step 5: Solve for x
    x = 6,393,208,799,392.66/2,891,389.47
  6. Step 6: Final answer
    x = 2,211,119.90

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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.