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Finding the Fourth Proportional to 886.67, 1,224.35 and 651.93

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Solution

The fourth proportional to 886.67, 1,224.35 and 651.93 is: 900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.67 : 1,224.35 = 651.93 : x
  2. Step 2: Convert to fraction form
    886.67/1,224.35 = 651.93/x
  3. Step 3: Cross multiply
    886.67x = 1,224.35 × 651.93
  4. Step 4: Simplify right side
    886.67x = 798,187.24
  5. Step 5: Solve for x
    x = 798,187.24/886.67
  6. Step 6: Final answer
    x = 900.21

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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.