Home / 2,929.16-4,043.70-1,989.92

Finding the Fourth Proportional to 2,929.16, 4,043.70 and 1,989.92

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Solution

The fourth proportional to 2,929.16, 4,043.70 and 1,989.92 is: 2,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.16 : 4,043.70 = 1,989.92 : x
  2. Step 2: Convert to fraction form
    2,929.16/4,043.70 = 1,989.92/x
  3. Step 3: Cross multiply
    2,929.16x = 4,043.70 × 1,989.92
  4. Step 4: Simplify right side
    2,929.16x = 8,046,619.29
  5. Step 5: Solve for x
    x = 8,046,619.29/2,929.16
  6. Step 6: Final answer
    x = 2,747.08

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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.