Home / 3,158.49-4,360.11-1,899.75

Finding the Fourth Proportional to 3,158.49, 4,360.11 and 1,899.75

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Solution

The fourth proportional to 3,158.49, 4,360.11 and 1,899.75 is: 2,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.49 : 4,360.11 = 1,899.75 : x
  2. Step 2: Convert to fraction form
    3,158.49/4,360.11 = 1,899.75/x
  3. Step 3: Cross multiply
    3,158.49x = 4,360.11 × 1,899.75
  4. Step 4: Simplify right side
    3,158.49x = 8,283,118.97
  5. Step 5: Solve for x
    x = 8,283,118.97/3,158.49
  6. Step 6: Final answer
    x = 2,622.49

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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.