Home / 5,559.80-8,315.40-4,247.60

Finding the Fourth Proportional to 5,559.80, 8,315.40 and 4,247.60

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Solution

The fourth proportional to 5,559.80, 8,315.40 and 4,247.60 is: 6,352.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.80 : 8,315.40 = 4,247.60 : x
  2. Step 2: Convert to fraction form
    5,559.80/8,315.40 = 4,247.60/x
  3. Step 3: Cross multiply
    5,559.80x = 8,315.40 × 4,247.60
  4. Step 4: Simplify right side
    5,559.80x = 35,320,493.04
  5. Step 5: Solve for x
    x = 35,320,493.04/5,559.80
  6. Step 6: Final answer
    x = 6,352.84

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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.