Home / 5,616.35-8,423.17-1,720.79

Finding the Fourth Proportional to 5,616.35, 8,423.17 and 1,720.79

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Solution

The fourth proportional to 5,616.35, 8,423.17 and 1,720.79 is: 2,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.35 : 8,423.17 = 1,720.79 : x
  2. Step 2: Convert to fraction form
    5,616.35/8,423.17 = 1,720.79/x
  3. Step 3: Cross multiply
    5,616.35x = 8,423.17 × 1,720.79
  4. Step 4: Simplify right side
    5,616.35x = 14,494,506.70
  5. Step 5: Solve for x
    x = 14,494,506.70/5,616.35
  6. Step 6: Final answer
    x = 2,580.77

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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.