Home / 2,015.80-2,781.96-1,176.76

Finding the Fourth Proportional to 2,015.80, 2,781.96 and 1,176.76

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Solution

The fourth proportional to 2,015.80, 2,781.96 and 1,176.76 is: 1,624.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.80 : 2,781.96 = 1,176.76 : x
  2. Step 2: Convert to fraction form
    2,015.80/2,781.96 = 1,176.76/x
  3. Step 3: Cross multiply
    2,015.80x = 2,781.96 × 1,176.76
  4. Step 4: Simplify right side
    2,015.80x = 3,273,699.25
  5. Step 5: Solve for x
    x = 3,273,699.25/2,015.80
  6. Step 6: Final answer
    x = 1,624.02

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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.