Home / 5,625.55-8,420.61-3,860.23

Finding the Fourth Proportional to 5,625.55, 8,420.61 and 3,860.23

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Solution

The fourth proportional to 5,625.55, 8,420.61 and 3,860.23 is: 5,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.55 : 8,420.61 = 3,860.23 : x
  2. Step 2: Convert to fraction form
    5,625.55/8,420.61 = 3,860.23/x
  3. Step 3: Cross multiply
    5,625.55x = 8,420.61 × 3,860.23
  4. Step 4: Simplify right side
    5,625.55x = 32,505,502.52
  5. Step 5: Solve for x
    x = 32,505,502.52/5,625.55
  6. Step 6: Final answer
    x = 5,778.19

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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.