Home / 5,120.29-7,065.03-2,995.71

Finding the Fourth Proportional to 5,120.29, 7,065.03 and 2,995.71

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Solution

The fourth proportional to 5,120.29, 7,065.03 and 2,995.71 is: 4,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.29 : 7,065.03 = 2,995.71 : x
  2. Step 2: Convert to fraction form
    5,120.29/7,065.03 = 2,995.71/x
  3. Step 3: Cross multiply
    5,120.29x = 7,065.03 × 2,995.71
  4. Step 4: Simplify right side
    5,120.29x = 21,164,781.02
  5. Step 5: Solve for x
    x = 21,164,781.02/5,120.29
  6. Step 6: Final answer
    x = 4,133.51

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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.