Home / 5,680.07-8,520.11-2,391.03

Finding the Fourth Proportional to 5,680.07, 8,520.11 and 2,391.03

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Solution

The fourth proportional to 5,680.07, 8,520.11 and 2,391.03 is: 3,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.07 : 8,520.11 = 2,391.03 : x
  2. Step 2: Convert to fraction form
    5,680.07/8,520.11 = 2,391.03/x
  3. Step 3: Cross multiply
    5,680.07x = 8,520.11 × 2,391.03
  4. Step 4: Simplify right side
    5,680.07x = 20,371,811.34
  5. Step 5: Solve for x
    x = 20,371,811.34/5,680.07
  6. Step 6: Final answer
    x = 3,586.54

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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.