Home / 3,175.20-4,374-2,643.84

Finding the Fourth Proportional to 3,175.20, 4,374 and 2,643.84

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Solution

The fourth proportional to 3,175.20, 4,374 and 2,643.84 is: 3,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.20 : 4,374 = 2,643.84 : x
  2. Step 2: Convert to fraction form
    3,175.20/4,374 = 2,643.84/x
  3. Step 3: Cross multiply
    3,175.20x = 4,374 × 2,643.84
  4. Step 4: Simplify right side
    3,175.20x = 11,564,156.16
  5. Step 5: Solve for x
    x = 11,564,156.16/3,175.20
  6. Step 6: Final answer
    x = 3,642.02

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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.