Home / 4,274.08-6,402.81-2,808.78

Finding the Fourth Proportional to 4,274.08, 6,402.81 and 2,808.78

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Solution

The fourth proportional to 4,274.08, 6,402.81 and 2,808.78 is: 4,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,274.08 : 6,402.81 = 2,808.78 : x
  2. Step 2: Convert to fraction form
    4,274.08/6,402.81 = 2,808.78/x
  3. Step 3: Cross multiply
    4,274.08x = 6,402.81 × 2,808.78
  4. Step 4: Simplify right side
    4,274.08x = 17,984,084.67
  5. Step 5: Solve for x
    x = 17,984,084.67/4,274.08
  6. Step 6: Final answer
    x = 4,207.71

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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.