Home / 4,145.60-5,718.80-2,651.92

Finding the Fourth Proportional to 4,145.60, 5,718.80 and 2,651.92

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Solution

The fourth proportional to 4,145.60, 5,718.80 and 2,651.92 is: 3,658.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.60 : 5,718.80 = 2,651.92 : x
  2. Step 2: Convert to fraction form
    4,145.60/5,718.80 = 2,651.92/x
  3. Step 3: Cross multiply
    4,145.60x = 5,718.80 × 2,651.92
  4. Step 4: Simplify right side
    4,145.60x = 15,165,800.10
  5. Step 5: Solve for x
    x = 15,165,800.10/4,145.60
  6. Step 6: Final answer
    x = 3,658.29

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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.