Home / 7,920.48-11,880.73-3,176.52

Finding the Fourth Proportional to 7,920.48, 11,880.73 and 3,176.52

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Solution

The fourth proportional to 7,920.48, 11,880.73 and 3,176.52 is: 4,764.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.48 : 11,880.73 = 3,176.52 : x
  2. Step 2: Convert to fraction form
    7,920.48/11,880.73 = 3,176.52/x
  3. Step 3: Cross multiply
    7,920.48x = 11,880.73 × 3,176.52
  4. Step 4: Simplify right side
    7,920.48x = 37,739,318.01
  5. Step 5: Solve for x
    x = 37,739,318.01/7,920.48
  6. Step 6: Final answer
    x = 4,764.77

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Similar ratio
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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.