Home / 5,275.11-7,279.13-2,917.10

Finding the Fourth Proportional to 5,275.11, 7,279.13 and 2,917.10

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Solution

The fourth proportional to 5,275.11, 7,279.13 and 2,917.10 is: 4,025.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.11 : 7,279.13 = 2,917.10 : x
  2. Step 2: Convert to fraction form
    5,275.11/7,279.13 = 2,917.10/x
  3. Step 3: Cross multiply
    5,275.11x = 7,279.13 × 2,917.10
  4. Step 4: Simplify right side
    5,275.11x = 21,233,950.12
  5. Step 5: Solve for x
    x = 21,233,950.12/5,275.11
  6. Step 6: Final answer
    x = 4,025.31

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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.