Home / 2,005.60-2,767.68-1,177.60

Finding the Fourth Proportional to 2,005.60, 2,767.68 and 1,177.60

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Solution

The fourth proportional to 2,005.60, 2,767.68 and 1,177.60 is: 1,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.60 : 2,767.68 = 1,177.60 : x
  2. Step 2: Convert to fraction form
    2,005.60/2,767.68 = 1,177.60/x
  3. Step 3: Cross multiply
    2,005.60x = 2,767.68 × 1,177.60
  4. Step 4: Simplify right side
    2,005.60x = 3,259,219.97
  5. Step 5: Solve for x
    x = 3,259,219.97/2,005.60
  6. Step 6: Final answer
    x = 1,625.06

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1.5x scale

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.