Home / 2,822.51-4,234.45-1,178.15

Finding the Fourth Proportional to 2,822.51, 4,234.45 and 1,178.15

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Solution

The fourth proportional to 2,822.51, 4,234.45 and 1,178.15 is: 1,767.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.51 : 4,234.45 = 1,178.15 : x
  2. Step 2: Convert to fraction form
    2,822.51/4,234.45 = 1,178.15/x
  3. Step 3: Cross multiply
    2,822.51x = 4,234.45 × 1,178.15
  4. Step 4: Simplify right side
    2,822.51x = 4,988,793.15
  5. Step 5: Solve for x
    x = 4,988,793.15/2,822.51
  6. Step 6: Final answer
    x = 1,767.50

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1.5x scale

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.