Home / 2,277.50-3,143.14-1,393.86

Finding the Fourth Proportional to 2,277.50, 3,143.14 and 1,393.86

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Solution

The fourth proportional to 2,277.50, 3,143.14 and 1,393.86 is: 1,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.50 : 3,143.14 = 1,393.86 : x
  2. Step 2: Convert to fraction form
    2,277.50/3,143.14 = 1,393.86/x
  3. Step 3: Cross multiply
    2,277.50x = 3,143.14 × 1,393.86
  4. Step 4: Simplify right side
    2,277.50x = 4,381,097.12
  5. Step 5: Solve for x
    x = 4,381,097.12/2,277.50
  6. Step 6: Final answer
    x = 1,923.64

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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.