Home / 5,272.12-7,275.26-2,913.81

Finding the Fourth Proportional to 5,272.12, 7,275.26 and 2,913.81

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Solution

The fourth proportional to 5,272.12, 7,275.26 and 2,913.81 is: 4,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.12 : 7,275.26 = 2,913.81 : x
  2. Step 2: Convert to fraction form
    5,272.12/7,275.26 = 2,913.81/x
  3. Step 3: Cross multiply
    5,272.12x = 7,275.26 × 2,913.81
  4. Step 4: Simplify right side
    5,272.12x = 21,198,674.40
  5. Step 5: Solve for x
    x = 21,198,674.40/5,272.12
  6. Step 6: Final answer
    x = 4,020.90

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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.