Home / 7,879.28-10,873.89-4,342.50

Finding the Fourth Proportional to 7,879.28, 10,873.89 and 4,342.50

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Solution

The fourth proportional to 7,879.28, 10,873.89 and 4,342.50 is: 5,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.28 : 10,873.89 = 4,342.50 : x
  2. Step 2: Convert to fraction form
    7,879.28/10,873.89 = 4,342.50/x
  3. Step 3: Cross multiply
    7,879.28x = 10,873.89 × 4,342.50
  4. Step 4: Simplify right side
    7,879.28x = 47,219,867.33
  5. Step 5: Solve for x
    x = 47,219,867.33/7,879.28
  6. Step 6: Final answer
    x = 5,992.92

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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.