Home / 2,271.92-3,135.24-1,277.42

Finding the Fourth Proportional to 2,271.92, 3,135.24 and 1,277.42

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Solution

The fourth proportional to 2,271.92, 3,135.24 and 1,277.42 is: 1,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.92 : 3,135.24 = 1,277.42 : x
  2. Step 2: Convert to fraction form
    2,271.92/3,135.24 = 1,277.42/x
  3. Step 3: Cross multiply
    2,271.92x = 3,135.24 × 1,277.42
  4. Step 4: Simplify right side
    2,271.92x = 4,005,002.60
  5. Step 5: Solve for x
    x = 4,005,002.60/2,271.92
  6. Step 6: Final answer
    x = 1,762.83

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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.