Home / 5,275.69-7,279.22-3,150.81

Finding the Fourth Proportional to 5,275.69, 7,279.22 and 3,150.81

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Solution

The fourth proportional to 5,275.69, 7,279.22 and 3,150.81 is: 4,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.69 : 7,279.22 = 3,150.81 : x
  2. Step 2: Convert to fraction form
    5,275.69/7,279.22 = 3,150.81/x
  3. Step 3: Cross multiply
    5,275.69x = 7,279.22 × 3,150.81
  4. Step 4: Simplify right side
    5,275.69x = 22,935,447.05
  5. Step 5: Solve for x
    x = 22,935,447.05/5,275.69
  6. Step 6: Final answer
    x = 4,347.39

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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.