Home / 5,439.72-8,153.16-2,626.80

Finding the Fourth Proportional to 5,439.72, 8,153.16 and 2,626.80

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Solution

The fourth proportional to 5,439.72, 8,153.16 and 2,626.80 is: 3,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.72 : 8,153.16 = 2,626.80 : x
  2. Step 2: Convert to fraction form
    5,439.72/8,153.16 = 2,626.80/x
  3. Step 3: Cross multiply
    5,439.72x = 8,153.16 × 2,626.80
  4. Step 4: Simplify right side
    5,439.72x = 21,416,720.69
  5. Step 5: Solve for x
    x = 21,416,720.69/5,439.72
  6. Step 6: Final answer
    x = 3,937.10

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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.