Home / 3,155.78-4,733.66-3,151.22

Finding the Fourth Proportional to 3,155.78, 4,733.66 and 3,151.22

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Solution

The fourth proportional to 3,155.78, 4,733.66 and 3,151.22 is: 4,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.78 : 4,733.66 = 3,151.22 : x
  2. Step 2: Convert to fraction form
    3,155.78/4,733.66 = 3,151.22/x
  3. Step 3: Cross multiply
    3,155.78x = 4,733.66 × 3,151.22
  4. Step 4: Simplify right side
    3,155.78x = 14,916,804.07
  5. Step 5: Solve for x
    x = 14,916,804.07/3,155.78
  6. Step 6: Final answer
    x = 4,726.82

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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.