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Finding the Third Proportional to 3,417.84 and 4,887.47

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Solution

The third proportional to 3,417.84 and 4,887.47 is: 6,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.84 : 4,887.47 = 4,887.47 : x
  2. Step 2: Convert to fraction form
    3,417.84/4,887.47 = 4,887.47/x
  3. Step 3: Cross multiply
    3,417.84x = 4,887.47 × 4,887.47
  4. Step 4: Simplify right side
    3,417.84x = 23,887,350.78
  5. Step 5: Solve for x
    x = 23,887,350.78/3,417.84
  6. Step 6: Final answer
    x = 6,989.01

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.