Home / 1,966.08-2,943.86-1,039.72

Finding the Fourth Proportional to 1,966.08, 2,943.86 and 1,039.72

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Solution

The fourth proportional to 1,966.08, 2,943.86 and 1,039.72 is: 1,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.08 : 2,943.86 = 1,039.72 : x
  2. Step 2: Convert to fraction form
    1,966.08/2,943.86 = 1,039.72/x
  3. Step 3: Cross multiply
    1,966.08x = 2,943.86 × 1,039.72
  4. Step 4: Simplify right side
    1,966.08x = 3,060,790.12
  5. Step 5: Solve for x
    x = 3,060,790.12/1,966.08
  6. Step 6: Final answer
    x = 1,556.80

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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.