Home / 3,121,132-4,307,162.16-1,690,348

Finding the Fourth Proportional to 3,121,132, 4,307,162.16 and 1,690,348

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Solution

The fourth proportional to 3,121,132, 4,307,162.16 and 1,690,348 is: 2,332,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,132 : 4,307,162.16 = 1,690,348 : x
  2. Step 2: Convert to fraction form
    3,121,132/4,307,162.16 = 1,690,348/x
  3. Step 3: Cross multiply
    3,121,132x = 4,307,162.16 × 1,690,348
  4. Step 4: Simplify right side
    3,121,132x = 7,280,602,942,831.68
  5. Step 5: Solve for x
    x = 7,280,602,942,831.68/3,121,132
  6. Step 6: Final answer
    x = 2,332,680.24

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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.