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Finding the Fourth Proportional to 2,210.88, 3,316.34 and 650.91

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Solution

The fourth proportional to 2,210.88, 3,316.34 and 650.91 is: 976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.88 : 3,316.34 = 650.91 : x
  2. Step 2: Convert to fraction form
    2,210.88/3,316.34 = 650.91/x
  3. Step 3: Cross multiply
    2,210.88x = 3,316.34 × 650.91
  4. Step 4: Simplify right side
    2,210.88x = 2,158,638.87
  5. Step 5: Solve for x
    x = 2,158,638.87/2,210.88
  6. Step 6: Final answer
    x = 976.37

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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.