Home / 3,748.21-5,170.57-2,862.47

Finding the Fourth Proportional to 3,748.21, 5,170.57 and 2,862.47

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Solution

The fourth proportional to 3,748.21, 5,170.57 and 2,862.47 is: 3,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.21 : 5,170.57 = 2,862.47 : x
  2. Step 2: Convert to fraction form
    3,748.21/5,170.57 = 2,862.47/x
  3. Step 3: Cross multiply
    3,748.21x = 5,170.57 × 2,862.47
  4. Step 4: Simplify right side
    3,748.21x = 14,800,607.28
  5. Step 5: Solve for x
    x = 14,800,607.28/3,748.21
  6. Step 6: Final answer
    x = 3,948.72

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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.