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Finding the Fourth Proportional to 2,703.12, 3,730.40 and 1,584.88

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Solution

The fourth proportional to 2,703.12, 3,730.40 and 1,584.88 is: 2,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.12 : 3,730.40 = 1,584.88 : x
  2. Step 2: Convert to fraction form
    2,703.12/3,730.40 = 1,584.88/x
  3. Step 3: Cross multiply
    2,703.12x = 3,730.40 × 1,584.88
  4. Step 4: Simplify right side
    2,703.12x = 5,912,236.35
  5. Step 5: Solve for x
    x = 5,912,236.35/2,703.12
  6. Step 6: Final answer
    x = 2,187.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.