Home / 4,148.21-5,718.48-3,151.75

Finding the Fourth Proportional to 4,148.21, 5,718.48 and 3,151.75

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Solution

The fourth proportional to 4,148.21, 5,718.48 and 3,151.75 is: 4,344.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.21 : 5,718.48 = 3,151.75 : x
  2. Step 2: Convert to fraction form
    4,148.21/5,718.48 = 3,151.75/x
  3. Step 3: Cross multiply
    4,148.21x = 5,718.48 × 3,151.75
  4. Step 4: Simplify right side
    4,148.21x = 18,023,219.34
  5. Step 5: Solve for x
    x = 18,023,219.34/4,148.21
  6. Step 6: Final answer
    x = 4,344.82

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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.