Home / 3,151.55-4,349.16-1,754.30

Finding the Fourth Proportional to 3,151.55, 4,349.16 and 1,754.30

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Solution

The fourth proportional to 3,151.55, 4,349.16 and 1,754.30 is: 2,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.55 : 4,349.16 = 1,754.30 : x
  2. Step 2: Convert to fraction form
    3,151.55/4,349.16 = 1,754.30/x
  3. Step 3: Cross multiply
    3,151.55x = 4,349.16 × 1,754.30
  4. Step 4: Simplify right side
    3,151.55x = 7,629,731.39
  5. Step 5: Solve for x
    x = 7,629,731.39/3,151.55
  6. Step 6: Final answer
    x = 2,420.95

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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.