Home / 5,272.12-7,275.96-2,914.72

Finding the Fourth Proportional to 5,272.12, 7,275.96 and 2,914.72

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Solution

The fourth proportional to 5,272.12, 7,275.96 and 2,914.72 is: 4,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.12 : 7,275.96 = 2,914.72 : x
  2. Step 2: Convert to fraction form
    5,272.12/7,275.96 = 2,914.72/x
  3. Step 3: Cross multiply
    5,272.12x = 7,275.96 × 2,914.72
  4. Step 4: Simplify right side
    5,272.12x = 21,207,386.13
  5. Step 5: Solve for x
    x = 21,207,386.13/5,272.12
  6. Step 6: Final answer
    x = 4,022.55

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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.