Home / 2,272.95-3,135.78-1,376.87

Finding the Fourth Proportional to 2,272.95, 3,135.78 and 1,376.87

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Solution

The fourth proportional to 2,272.95, 3,135.78 and 1,376.87 is: 1,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.95 : 3,135.78 = 1,376.87 : x
  2. Step 2: Convert to fraction form
    2,272.95/3,135.78 = 1,376.87/x
  3. Step 3: Cross multiply
    2,272.95x = 3,135.78 × 1,376.87
  4. Step 4: Simplify right side
    2,272.95x = 4,317,545.73
  5. Step 5: Solve for x
    x = 4,317,545.73/2,272.95
  6. Step 6: Final answer
    x = 1,899.53

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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.