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Finding the Fourth Proportional to 3,188.74, 4,784.53 and 1,726.18

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Solution

The fourth proportional to 3,188.74, 4,784.53 and 1,726.18 is: 2,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.74 : 4,784.53 = 1,726.18 : x
  2. Step 2: Convert to fraction form
    3,188.74/4,784.53 = 1,726.18/x
  3. Step 3: Cross multiply
    3,188.74x = 4,784.53 × 1,726.18
  4. Step 4: Simplify right side
    3,188.74x = 8,258,960.00
  5. Step 5: Solve for x
    x = 8,258,960.00/3,188.74
  6. Step 6: Final answer
    x = 2,590.04

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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.