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Finding the Third Proportional to 4,545 and 6,445.50

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Solution

The third proportional to 4,545 and 6,445.50 is: 9,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545 : 6,445.50 = 6,445.50 : x
  2. Step 2: Convert to fraction form
    4,545/6,445.50 = 6,445.50/x
  3. Step 3: Cross multiply
    4,545x = 6,445.50 × 6,445.50
  4. Step 4: Simplify right side
    4,545x = 41,544,470.25
  5. Step 5: Solve for x
    x = 41,544,470.25/4,545
  6. Step 6: Final answer
    x = 9,140.70

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.