Home / 7,985.76-11,977.02-2,141

Finding the Fourth Proportional to 7,985.76, 11,977.02 and 2,141

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Solution

The fourth proportional to 7,985.76, 11,977.02 and 2,141 is: 3,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.76 : 11,977.02 = 2,141 : x
  2. Step 2: Convert to fraction form
    7,985.76/11,977.02 = 2,141/x
  3. Step 3: Cross multiply
    7,985.76x = 11,977.02 × 2,141
  4. Step 4: Simplify right side
    7,985.76x = 25,642,799.82
  5. Step 5: Solve for x
    x = 25,642,799.82/7,985.76
  6. Step 6: Final answer
    x = 3,211.07

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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.