Home / 5,272.19-7,275.62-3,176.72

Finding the Fourth Proportional to 5,272.19, 7,275.62 and 3,176.72

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Solution

The fourth proportional to 5,272.19, 7,275.62 and 3,176.72 is: 4,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.19 : 7,275.62 = 3,176.72 : x
  2. Step 2: Convert to fraction form
    5,272.19/7,275.62 = 3,176.72/x
  3. Step 3: Cross multiply
    5,272.19x = 7,275.62 × 3,176.72
  4. Step 4: Simplify right side
    5,272.19x = 23,112,607.57
  5. Step 5: Solve for x
    x = 23,112,607.57/5,272.19
  6. Step 6: Final answer
    x = 4,383.87

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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.