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Finding the Third Proportional to 5,130 and 6,889.50

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Solution

The third proportional to 5,130 and 6,889.50 is: 9,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130 : 6,889.50 = 6,889.50 : x
  2. Step 2: Convert to fraction form
    5,130/6,889.50 = 6,889.50/x
  3. Step 3: Cross multiply
    5,130x = 6,889.50 × 6,889.50
  4. Step 4: Simplify right side
    5,130x = 47,465,210.25
  5. Step 5: Solve for x
    x = 47,465,210.25/5,130
  6. Step 6: Final answer
    x = 9,252.48

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.