Home / 1,966.13-2,695.68-1,931.03

Finding the Fourth Proportional to 1,966.13, 2,695.68 and 1,931.03

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Solution

The fourth proportional to 1,966.13, 2,695.68 and 1,931.03 is: 2,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.13 : 2,695.68 = 1,931.03 : x
  2. Step 2: Convert to fraction form
    1,966.13/2,695.68 = 1,931.03/x
  3. Step 3: Cross multiply
    1,966.13x = 2,695.68 × 1,931.03
  4. Step 4: Simplify right side
    1,966.13x = 5,205,429.30
  5. Step 5: Solve for x
    x = 5,205,429.30/1,966.13
  6. Step 6: Final answer
    x = 2,647.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.