Home / 3,455.68-5,178.64-2,479.64

Finding the Fourth Proportional to 3,455.68, 5,178.64 and 2,479.64

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Solution

The fourth proportional to 3,455.68, 5,178.64 and 2,479.64 is: 3,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.68 : 5,178.64 = 2,479.64 : x
  2. Step 2: Convert to fraction form
    3,455.68/5,178.64 = 2,479.64/x
  3. Step 3: Cross multiply
    3,455.68x = 5,178.64 × 2,479.64
  4. Step 4: Simplify right side
    3,455.68x = 12,841,162.89
  5. Step 5: Solve for x
    x = 12,841,162.89/3,455.68
  6. Step 6: Final answer
    x = 3,715.96

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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.