Home / 5,742.80-8,618.30-2,458.25

Finding the Fourth Proportional to 5,742.80, 8,618.30 and 2,458.25

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Solution

The fourth proportional to 5,742.80, 8,618.30 and 2,458.25 is: 3,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.80 : 8,618.30 = 2,458.25 : x
  2. Step 2: Convert to fraction form
    5,742.80/8,618.30 = 2,458.25/x
  3. Step 3: Cross multiply
    5,742.80x = 8,618.30 × 2,458.25
  4. Step 4: Simplify right side
    5,742.80x = 21,185,922.13
  5. Step 5: Solve for x
    x = 21,185,922.13/5,742.80
  6. Step 6: Final answer
    x = 3,689.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.