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Finding the Fourth Proportional to 2,885.73, 4,328.75 and 937.79

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Solution

The fourth proportional to 2,885.73, 4,328.75 and 937.79 is: 1,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.73 : 4,328.75 = 937.79 : x
  2. Step 2: Convert to fraction form
    2,885.73/4,328.75 = 937.79/x
  3. Step 3: Cross multiply
    2,885.73x = 4,328.75 × 937.79
  4. Step 4: Simplify right side
    2,885.73x = 4,059,458.46
  5. Step 5: Solve for x
    x = 4,059,458.46/2,885.73
  6. Step 6: Final answer
    x = 1,406.74

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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.