Home / 6,131.80-9,173.40-5,319.10

Finding the Fourth Proportional to 6,131.80, 9,173.40 and 5,319.10

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Solution

The fourth proportional to 6,131.80, 9,173.40 and 5,319.10 is: 7,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.80 : 9,173.40 = 5,319.10 : x
  2. Step 2: Convert to fraction form
    6,131.80/9,173.40 = 5,319.10/x
  3. Step 3: Cross multiply
    6,131.80x = 9,173.40 × 5,319.10
  4. Step 4: Simplify right side
    6,131.80x = 48,794,231.94
  5. Step 5: Solve for x
    x = 48,794,231.94/6,131.80
  6. Step 6: Final answer
    x = 7,957.57

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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.