Home / 2,277.55-3,143.10-1,269.35

Finding the Fourth Proportional to 2,277.55, 3,143.10 and 1,269.35

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Solution

The fourth proportional to 2,277.55, 3,143.10 and 1,269.35 is: 1,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.55 : 3,143.10 = 1,269.35 : x
  2. Step 2: Convert to fraction form
    2,277.55/3,143.10 = 1,269.35/x
  3. Step 3: Cross multiply
    2,277.55x = 3,143.10 × 1,269.35
  4. Step 4: Simplify right side
    2,277.55x = 3,989,671.92
  5. Step 5: Solve for x
    x = 3,989,671.92/2,277.55
  6. Step 6: Final answer
    x = 1,751.74

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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.