Home / 2,660.46-3,985.20-1,561.52

Finding the Fourth Proportional to 2,660.46, 3,985.20 and 1,561.52

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Solution

The fourth proportional to 2,660.46, 3,985.20 and 1,561.52 is: 2,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.46 : 3,985.20 = 1,561.52 : x
  2. Step 2: Convert to fraction form
    2,660.46/3,985.20 = 1,561.52/x
  3. Step 3: Cross multiply
    2,660.46x = 3,985.20 × 1,561.52
  4. Step 4: Simplify right side
    2,660.46x = 6,222,969.50
  5. Step 5: Solve for x
    x = 6,222,969.50/2,660.46
  6. Step 6: Final answer
    x = 2,339.06

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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.