Home / 7,970.64-11,956.02-2,127.18

Finding the Fourth Proportional to 7,970.64, 11,956.02 and 2,127.18

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Solution

The fourth proportional to 7,970.64, 11,956.02 and 2,127.18 is: 3,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.64 : 11,956.02 = 2,127.18 : x
  2. Step 2: Convert to fraction form
    7,970.64/11,956.02 = 2,127.18/x
  3. Step 3: Cross multiply
    7,970.64x = 11,956.02 × 2,127.18
  4. Step 4: Simplify right side
    7,970.64x = 25,432,606.62
  5. Step 5: Solve for x
    x = 25,432,606.62/7,970.64
  6. Step 6: Final answer
    x = 3,190.79

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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.