Home / 2,929.80-4,042.86-1,671.16

Finding the Fourth Proportional to 2,929.80, 4,042.86 and 1,671.16

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Solution

The fourth proportional to 2,929.80, 4,042.86 and 1,671.16 is: 2,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.80 : 4,042.86 = 1,671.16 : x
  2. Step 2: Convert to fraction form
    2,929.80/4,042.86 = 1,671.16/x
  3. Step 3: Cross multiply
    2,929.80x = 4,042.86 × 1,671.16
  4. Step 4: Simplify right side
    2,929.80x = 6,756,265.92
  5. Step 5: Solve for x
    x = 6,756,265.92/2,929.80
  6. Step 6: Final answer
    x = 2,306.05

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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.