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Finding the Fourth Proportional to 651.75, 977.28 and 514.41

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Solution

The fourth proportional to 651.75, 977.28 and 514.41 is: 771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.75 : 977.28 = 514.41 : x
  2. Step 2: Convert to fraction form
    651.75/977.28 = 514.41/x
  3. Step 3: Cross multiply
    651.75x = 977.28 × 514.41
  4. Step 4: Simplify right side
    651.75x = 502,722.60
  5. Step 5: Solve for x
    x = 502,722.60/651.75
  6. Step 6: Final answer
    x = 771.34

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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.