Home / 6,475.20-9,714.40-2,775.68

Finding the Fourth Proportional to 6,475.20, 9,714.40 and 2,775.68

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Solution

The fourth proportional to 6,475.20, 9,714.40 and 2,775.68 is: 4,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.20 : 9,714.40 = 2,775.68 : x
  2. Step 2: Convert to fraction form
    6,475.20/9,714.40 = 2,775.68/x
  3. Step 3: Cross multiply
    6,475.20x = 9,714.40 × 2,775.68
  4. Step 4: Simplify right side
    6,475.20x = 26,964,065.79
  5. Step 5: Solve for x
    x = 26,964,065.79/6,475.20
  6. Step 6: Final answer
    x = 4,164.21

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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.