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Finding the Fourth Proportional to 2,822.86, 4,234.20 and 875.02

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Solution

The fourth proportional to 2,822.86, 4,234.20 and 875.02 is: 1,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.86 : 4,234.20 = 875.02 : x
  2. Step 2: Convert to fraction form
    2,822.86/4,234.20 = 875.02/x
  3. Step 3: Cross multiply
    2,822.86x = 4,234.20 × 875.02
  4. Step 4: Simplify right side
    2,822.86x = 3,705,009.68
  5. Step 5: Solve for x
    x = 3,705,009.68/2,822.86
  6. Step 6: Final answer
    x = 1,312.50

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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.