Home / 2,931.28-4,044.16-1,671.42

Finding the Fourth Proportional to 2,931.28, 4,044.16 and 1,671.42

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Solution

The fourth proportional to 2,931.28, 4,044.16 and 1,671.42 is: 2,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.28 : 4,044.16 = 1,671.42 : x
  2. Step 2: Convert to fraction form
    2,931.28/4,044.16 = 1,671.42/x
  3. Step 3: Cross multiply
    2,931.28x = 4,044.16 × 1,671.42
  4. Step 4: Simplify right side
    2,931.28x = 6,759,481.55
  5. Step 5: Solve for x
    x = 6,759,481.55/2,931.28
  6. Step 6: Final answer
    x = 2,305.99

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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.