Home / 3,170.88-4,377.02-2,838.71

Finding the Fourth Proportional to 3,170.88, 4,377.02 and 2,838.71

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Solution

The fourth proportional to 3,170.88, 4,377.02 and 2,838.71 is: 3,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.88 : 4,377.02 = 2,838.71 : x
  2. Step 2: Convert to fraction form
    3,170.88/4,377.02 = 2,838.71/x
  3. Step 3: Cross multiply
    3,170.88x = 4,377.02 × 2,838.71
  4. Step 4: Simplify right side
    3,170.88x = 12,425,090.44
  5. Step 5: Solve for x
    x = 12,425,090.44/3,170.88
  6. Step 6: Final answer
    x = 3,918.50

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1.5x scale

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.