Home / 3,970.46-5,476.86-2,626.11

Finding the Fourth Proportional to 3,970.46, 5,476.86 and 2,626.11

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Solution

The fourth proportional to 3,970.46, 5,476.86 and 2,626.11 is: 3,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.46 : 5,476.86 = 2,626.11 : x
  2. Step 2: Convert to fraction form
    3,970.46/5,476.86 = 2,626.11/x
  3. Step 3: Cross multiply
    3,970.46x = 5,476.86 × 2,626.11
  4. Step 4: Simplify right side
    3,970.46x = 14,382,836.81
  5. Step 5: Solve for x
    x = 14,382,836.81/3,970.46
  6. Step 6: Final answer
    x = 3,622.46

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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.