Home / 7,788.48-11,680.55-2,240.31

Finding the Fourth Proportional to 7,788.48, 11,680.55 and 2,240.31

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Solution

The fourth proportional to 7,788.48, 11,680.55 and 2,240.31 is: 3,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.48 : 11,680.55 = 2,240.31 : x
  2. Step 2: Convert to fraction form
    7,788.48/11,680.55 = 2,240.31/x
  3. Step 3: Cross multiply
    7,788.48x = 11,680.55 × 2,240.31
  4. Step 4: Simplify right side
    7,788.48x = 26,168,052.97
  5. Step 5: Solve for x
    x = 26,168,052.97/7,788.48
  6. Step 6: Final answer
    x = 3,359.84

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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.