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Finding the Third Proportional to 1,470 and 2,290.50

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Solution

The third proportional to 1,470 and 2,290.50 is: 3,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470 : 2,290.50 = 2,290.50 : x
  2. Step 2: Convert to fraction form
    1,470/2,290.50 = 2,290.50/x
  3. Step 3: Cross multiply
    1,470x = 2,290.50 × 2,290.50
  4. Step 4: Simplify right side
    1,470x = 5,246,390.25
  5. Step 5: Solve for x
    x = 5,246,390.25/1,470
  6. Step 6: Final answer
    x = 3,568.97

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.