Home / 5,626.72-8,440.08-2,164.78

Finding the Fourth Proportional to 5,626.72, 8,440.08 and 2,164.78

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Solution

The fourth proportional to 5,626.72, 8,440.08 and 2,164.78 is: 3,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.72 : 8,440.08 = 2,164.78 : x
  2. Step 2: Convert to fraction form
    5,626.72/8,440.08 = 2,164.78/x
  3. Step 3: Cross multiply
    5,626.72x = 8,440.08 × 2,164.78
  4. Step 4: Simplify right side
    5,626.72x = 18,270,916.38
  5. Step 5: Solve for x
    x = 18,270,916.38/5,626.72
  6. Step 6: Final answer
    x = 3,247.17

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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.