Home / 4,145.12-5,719.68-2,376.80

Finding the Fourth Proportional to 4,145.12, 5,719.68 and 2,376.80

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Solution

The fourth proportional to 4,145.12, 5,719.68 and 2,376.80 is: 3,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.12 : 5,719.68 = 2,376.80 : x
  2. Step 2: Convert to fraction form
    4,145.12/5,719.68 = 2,376.80/x
  3. Step 3: Cross multiply
    4,145.12x = 5,719.68 × 2,376.80
  4. Step 4: Simplify right side
    4,145.12x = 13,594,535.42
  5. Step 5: Solve for x
    x = 13,594,535.42/4,145.12
  6. Step 6: Final answer
    x = 3,279.65

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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.