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Finding the Fourth Proportional to 2,470.50, 3,706.34 and 739.18

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Solution

The fourth proportional to 2,470.50, 3,706.34 and 739.18 is: 1,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.50 : 3,706.34 = 739.18 : x
  2. Step 2: Convert to fraction form
    2,470.50/3,706.34 = 739.18/x
  3. Step 3: Cross multiply
    2,470.50x = 3,706.34 × 739.18
  4. Step 4: Simplify right side
    2,470.50x = 2,739,652.40
  5. Step 5: Solve for x
    x = 2,739,652.40/2,470.50
  6. Step 6: Final answer
    x = 1,108.95

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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.