Home / 7,158.54-9,879.10-4,173.96

Finding the Fourth Proportional to 7,158.54, 9,879.10 and 4,173.96

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Solution

The fourth proportional to 7,158.54, 9,879.10 and 4,173.96 is: 5,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.54 : 9,879.10 = 4,173.96 : x
  2. Step 2: Convert to fraction form
    7,158.54/9,879.10 = 4,173.96/x
  3. Step 3: Cross multiply
    7,158.54x = 9,879.10 × 4,173.96
  4. Step 4: Simplify right side
    7,158.54x = 41,234,968.24
  5. Step 5: Solve for x
    x = 41,234,968.24/7,158.54
  6. Step 6: Final answer
    x = 5,760.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.