Home / 6,440.95-9,659.40-3,972.07

Finding the Fourth Proportional to 6,440.95, 9,659.40 and 3,972.07

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Solution

The fourth proportional to 6,440.95, 9,659.40 and 3,972.07 is: 5,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.95 : 9,659.40 = 3,972.07 : x
  2. Step 2: Convert to fraction form
    6,440.95/9,659.40 = 3,972.07/x
  3. Step 3: Cross multiply
    6,440.95x = 9,659.40 × 3,972.07
  4. Step 4: Simplify right side
    6,440.95x = 38,367,812.96
  5. Step 5: Solve for x
    x = 38,367,812.96/6,440.95
  6. Step 6: Final answer
    x = 5,956.86

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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.