Home / 7,679.28-11,518.47-2,484.75

Finding the Fourth Proportional to 7,679.28, 11,518.47 and 2,484.75

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Solution

The fourth proportional to 7,679.28, 11,518.47 and 2,484.75 is: 3,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.28 : 11,518.47 = 2,484.75 : x
  2. Step 2: Convert to fraction form
    7,679.28/11,518.47 = 2,484.75/x
  3. Step 3: Cross multiply
    7,679.28x = 11,518.47 × 2,484.75
  4. Step 4: Simplify right side
    7,679.28x = 28,620,518.33
  5. Step 5: Solve for x
    x = 28,620,518.33/7,679.28
  6. Step 6: Final answer
    x = 3,726.98

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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.