Home / 3,175.61-4,381.92-1,899.50

Finding the Fourth Proportional to 3,175.61, 4,381.92 and 1,899.50

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Solution

The fourth proportional to 3,175.61, 4,381.92 and 1,899.50 is: 2,621.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.61 : 4,381.92 = 1,899.50 : x
  2. Step 2: Convert to fraction form
    3,175.61/4,381.92 = 1,899.50/x
  3. Step 3: Cross multiply
    3,175.61x = 4,381.92 × 1,899.50
  4. Step 4: Simplify right side
    3,175.61x = 8,323,435.13
  5. Step 5: Solve for x
    x = 8,323,435.13/3,175.61
  6. Step 6: Final answer
    x = 2,621.05

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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.