Home / 4,187.60-5,780.76-2,751.92

Finding the Fourth Proportional to 4,187.60, 5,780.76 and 2,751.92

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Solution

The fourth proportional to 4,187.60, 5,780.76 and 2,751.92 is: 3,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.60 : 5,780.76 = 2,751.92 : x
  2. Step 2: Convert to fraction form
    4,187.60/5,780.76 = 2,751.92/x
  3. Step 3: Cross multiply
    4,187.60x = 5,780.76 × 2,751.92
  4. Step 4: Simplify right side
    4,187.60x = 15,908,189.06
  5. Step 5: Solve for x
    x = 15,908,189.06/4,187.60
  6. Step 6: Final answer
    x = 3,798.88

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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.