Home / 3,873.12-5,346.72-2,547.84

Finding the Fourth Proportional to 3,873.12, 5,346.72 and 2,547.84

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Solution

The fourth proportional to 3,873.12, 5,346.72 and 2,547.84 is: 3,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.12 : 5,346.72 = 2,547.84 : x
  2. Step 2: Convert to fraction form
    3,873.12/5,346.72 = 2,547.84/x
  3. Step 3: Cross multiply
    3,873.12x = 5,346.72 × 2,547.84
  4. Step 4: Simplify right side
    3,873.12x = 13,622,587.08
  5. Step 5: Solve for x
    x = 13,622,587.08/3,873.12
  6. Step 6: Final answer
    x = 3,517.21

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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.