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Finding the Fourth Proportional to 4,005, 5,530.32 and 2,515.41

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Solution

The fourth proportional to 4,005, 5,530.32 and 2,515.41 is: 3,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005 : 5,530.32 = 2,515.41 : x
  2. Step 2: Convert to fraction form
    4,005/5,530.32 = 2,515.41/x
  3. Step 3: Cross multiply
    4,005x = 5,530.32 × 2,515.41
  4. Step 4: Simplify right side
    4,005x = 13,911,022.23
  5. Step 5: Solve for x
    x = 13,911,022.23/4,005
  6. Step 6: Final answer
    x = 3,473.41

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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.