Home / 4,279.68-5,903.04-2,620.80

Finding the Fourth Proportional to 4,279.68, 5,903.04 and 2,620.80

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Solution

The fourth proportional to 4,279.68, 5,903.04 and 2,620.80 is: 3,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.68 : 5,903.04 = 2,620.80 : x
  2. Step 2: Convert to fraction form
    4,279.68/5,903.04 = 2,620.80/x
  3. Step 3: Cross multiply
    4,279.68x = 5,903.04 × 2,620.80
  4. Step 4: Simplify right side
    4,279.68x = 15,470,687.23
  5. Step 5: Solve for x
    x = 15,470,687.23/4,279.68
  6. Step 6: Final answer
    x = 3,614.92

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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.