Home / 6,678.30-9,215.24-3,693.72

Finding the Fourth Proportional to 6,678.30, 9,215.24 and 3,693.72

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Solution

The fourth proportional to 6,678.30, 9,215.24 and 3,693.72 is: 5,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.30 : 9,215.24 = 3,693.72 : x
  2. Step 2: Convert to fraction form
    6,678.30/9,215.24 = 3,693.72/x
  3. Step 3: Cross multiply
    6,678.30x = 9,215.24 × 3,693.72
  4. Step 4: Simplify right side
    6,678.30x = 34,038,497.82
  5. Step 5: Solve for x
    x = 34,038,497.82/6,678.30
  6. Step 6: Final answer
    x = 5,096.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.