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Finding the Fourth Proportional to 3,636, 5,015.34 and 2,376.72

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Solution

The fourth proportional to 3,636, 5,015.34 and 2,376.72 is: 3,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636 : 5,015.34 = 2,376.72 : x
  2. Step 2: Convert to fraction form
    3,636/5,015.34 = 2,376.72/x
  3. Step 3: Cross multiply
    3,636x = 5,015.34 × 2,376.72
  4. Step 4: Simplify right side
    3,636x = 11,920,058.88
  5. Step 5: Solve for x
    x = 11,920,058.88/3,636
  6. Step 6: Final answer
    x = 3,278.34

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1.5x scale

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.