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Finding the Fourth Proportional to 941.88, 1,410.82 and 877.79

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Solution

The fourth proportional to 941.88, 1,410.82 and 877.79 is: 1,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.88 : 1,410.82 = 877.79 : x
  2. Step 2: Convert to fraction form
    941.88/1,410.82 = 877.79/x
  3. Step 3: Cross multiply
    941.88x = 1,410.82 × 877.79
  4. Step 4: Simplify right side
    941.88x = 1,238,397.08
  5. Step 5: Solve for x
    x = 1,238,397.08/941.88
  6. Step 6: Final answer
    x = 1,314.82

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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.