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Finding the Fourth Proportional to 1,301.78, 1,795.80 and 881.99

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Solution

The fourth proportional to 1,301.78, 1,795.80 and 881.99 is: 1,216.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.78 : 1,795.80 = 881.99 : x
  2. Step 2: Convert to fraction form
    1,301.78/1,795.80 = 881.99/x
  3. Step 3: Cross multiply
    1,301.78x = 1,795.80 × 881.99
  4. Step 4: Simplify right side
    1,301.78x = 1,583,877.64
  5. Step 5: Solve for x
    x = 1,583,877.64/1,301.78
  6. Step 6: Final answer
    x = 1,216.70

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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.