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Finding the Fourth Proportional to 2,824.45, 4,236.64 and 876.66

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Solution

The fourth proportional to 2,824.45, 4,236.64 and 876.66 is: 1,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.45 : 4,236.64 = 876.66 : x
  2. Step 2: Convert to fraction form
    2,824.45/4,236.64 = 876.66/x
  3. Step 3: Cross multiply
    2,824.45x = 4,236.64 × 876.66
  4. Step 4: Simplify right side
    2,824.45x = 3,714,092.82
  5. Step 5: Solve for x
    x = 3,714,092.82/2,824.45
  6. Step 6: Final answer
    x = 1,314.98

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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.