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Finding the Fourth Proportional to 913.83, 1,371.22 and 584.94

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Solution

The fourth proportional to 913.83, 1,371.22 and 584.94 is: 877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    913.83 : 1,371.22 = 584.94 : x
  2. Step 2: Convert to fraction form
    913.83/1,371.22 = 584.94/x
  3. Step 3: Cross multiply
    913.83x = 1,371.22 × 584.94
  4. Step 4: Simplify right side
    913.83x = 802,085.11
  5. Step 5: Solve for x
    x = 802,085.11/913.83
  6. Step 6: Final answer
    x = 877.72

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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.