Home / 3,479.76-5,230.58-2,758.05

Finding the Fourth Proportional to 3,479.76, 5,230.58 and 2,758.05

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Solution

The fourth proportional to 3,479.76, 5,230.58 and 2,758.05 is: 4,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.76 : 5,230.58 = 2,758.05 : x
  2. Step 2: Convert to fraction form
    3,479.76/5,230.58 = 2,758.05/x
  3. Step 3: Cross multiply
    3,479.76x = 5,230.58 × 2,758.05
  4. Step 4: Simplify right side
    3,479.76x = 14,426,187.38
  5. Step 5: Solve for x
    x = 14,426,187.38/3,479.76
  6. Step 6: Final answer
    x = 4,145.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.