Home / 1,966.16-2,716.05-1,788.80

Finding the Fourth Proportional to 1,966.16, 2,716.05 and 1,788.80

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Solution

The fourth proportional to 1,966.16, 2,716.05 and 1,788.80 is: 2,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.16 : 2,716.05 = 1,788.80 : x
  2. Step 2: Convert to fraction form
    1,966.16/2,716.05 = 1,788.80/x
  3. Step 3: Cross multiply
    1,966.16x = 2,716.05 × 1,788.80
  4. Step 4: Simplify right side
    1,966.16x = 4,858,461.30
  5. Step 5: Solve for x
    x = 4,858,461.30/1,966.16
  6. Step 6: Final answer
    x = 2,471.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.