Home / 4,120.75-5,686.54-2,528.02

Finding the Fourth Proportional to 4,120.75, 5,686.54 and 2,528.02

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Solution

The fourth proportional to 4,120.75, 5,686.54 and 2,528.02 is: 3,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.75 : 5,686.54 = 2,528.02 : x
  2. Step 2: Convert to fraction form
    4,120.75/5,686.54 = 2,528.02/x
  3. Step 3: Cross multiply
    4,120.75x = 5,686.54 × 2,528.02
  4. Step 4: Simplify right side
    4,120.75x = 14,375,686.85
  5. Step 5: Solve for x
    x = 14,375,686.85/4,120.75
  6. Step 6: Final answer
    x = 3,488.61

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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.