Home / 4,087.22-5,640.30-2,515.28

Finding the Fourth Proportional to 4,087.22, 5,640.30 and 2,515.28

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Solution

The fourth proportional to 4,087.22, 5,640.30 and 2,515.28 is: 3,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.22 : 5,640.30 = 2,515.28 : x
  2. Step 2: Convert to fraction form
    4,087.22/5,640.30 = 2,515.28/x
  3. Step 3: Cross multiply
    4,087.22x = 5,640.30 × 2,515.28
  4. Step 4: Simplify right side
    4,087.22x = 14,186,905.58
  5. Step 5: Solve for x
    x = 14,186,905.58/4,087.22
  6. Step 6: Final answer
    x = 3,471.04

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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.