Home / 3,175.02-4,378.32-2,447.84

Finding the Fourth Proportional to 3,175.02, 4,378.32 and 2,447.84

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Solution

The fourth proportional to 3,175.02, 4,378.32 and 2,447.84 is: 3,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.02 : 4,378.32 = 2,447.84 : x
  2. Step 2: Convert to fraction form
    3,175.02/4,378.32 = 2,447.84/x
  3. Step 3: Cross multiply
    3,175.02x = 4,378.32 × 2,447.84
  4. Step 4: Simplify right side
    3,175.02x = 10,717,437.77
  5. Step 5: Solve for x
    x = 10,717,437.77/3,175.02
  6. Step 6: Final answer
    x = 3,375.55

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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.