Home / 2,651.28-3,658.14-1,853.61

Finding the Fourth Proportional to 2,651.28, 3,658.14 and 1,853.61

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Solution

The fourth proportional to 2,651.28, 3,658.14 and 1,853.61 is: 2,557.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.28 : 3,658.14 = 1,853.61 : x
  2. Step 2: Convert to fraction form
    2,651.28/3,658.14 = 1,853.61/x
  3. Step 3: Cross multiply
    2,651.28x = 3,658.14 × 1,853.61
  4. Step 4: Simplify right side
    2,651.28x = 6,780,764.89
  5. Step 5: Solve for x
    x = 6,780,764.89/2,651.28
  6. Step 6: Final answer
    x = 2,557.54

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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.