Home / 4,005.45-5,531.04-2,515.95

Finding the Fourth Proportional to 4,005.45, 5,531.04 and 2,515.95

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Solution

The fourth proportional to 4,005.45, 5,531.04 and 2,515.95 is: 3,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.45 : 5,531.04 = 2,515.95 : x
  2. Step 2: Convert to fraction form
    4,005.45/5,531.04 = 2,515.95/x
  3. Step 3: Cross multiply
    4,005.45x = 5,531.04 × 2,515.95
  4. Step 4: Simplify right side
    4,005.45x = 13,915,820.09
  5. Step 5: Solve for x
    x = 13,915,820.09/4,005.45
  6. Step 6: Final answer
    x = 3,474.22

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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.