Home / 7,714.20-11,569.88-2,166.16

Finding the Fourth Proportional to 7,714.20, 11,569.88 and 2,166.16

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Solution

The fourth proportional to 7,714.20, 11,569.88 and 2,166.16 is: 3,248.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.20 : 11,569.88 = 2,166.16 : x
  2. Step 2: Convert to fraction form
    7,714.20/11,569.88 = 2,166.16/x
  3. Step 3: Cross multiply
    7,714.20x = 11,569.88 × 2,166.16
  4. Step 4: Simplify right side
    7,714.20x = 25,062,211.26
  5. Step 5: Solve for x
    x = 25,062,211.26/7,714.20
  6. Step 6: Final answer
    x = 3,248.84

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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.