Home / 2,277.87-3,142.32-1,531.86

Finding the Fourth Proportional to 2,277.87, 3,142.32 and 1,531.86

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Solution

The fourth proportional to 2,277.87, 3,142.32 and 1,531.86 is: 2,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.87 : 3,142.32 = 1,531.86 : x
  2. Step 2: Convert to fraction form
    2,277.87/3,142.32 = 1,531.86/x
  3. Step 3: Cross multiply
    2,277.87x = 3,142.32 × 1,531.86
  4. Step 4: Simplify right side
    2,277.87x = 4,813,570.94
  5. Step 5: Solve for x
    x = 4,813,570.94/2,277.87
  6. Step 6: Final answer
    x = 2,113.19

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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.