Home / 3,151.29-4,726.75-1,395.79

Finding the Fourth Proportional to 3,151.29, 4,726.75 and 1,395.79

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Solution

The fourth proportional to 3,151.29, 4,726.75 and 1,395.79 is: 2,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.29 : 4,726.75 = 1,395.79 : x
  2. Step 2: Convert to fraction form
    3,151.29/4,726.75 = 1,395.79/x
  3. Step 3: Cross multiply
    3,151.29x = 4,726.75 × 1,395.79
  4. Step 4: Simplify right side
    3,151.29x = 6,597,535.08
  5. Step 5: Solve for x
    x = 6,597,535.08/3,151.29
  6. Step 6: Final answer
    x = 2,093.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.