Home / 3,970.10-5,955.54-1,372.70

Finding the Fourth Proportional to 3,970.10, 5,955.54 and 1,372.70

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Solution

The fourth proportional to 3,970.10, 5,955.54 and 1,372.70 is: 2,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.10 : 5,955.54 = 1,372.70 : x
  2. Step 2: Convert to fraction form
    3,970.10/5,955.54 = 1,372.70/x
  3. Step 3: Cross multiply
    3,970.10x = 5,955.54 × 1,372.70
  4. Step 4: Simplify right side
    3,970.10x = 8,175,139.98
  5. Step 5: Solve for x
    x = 8,175,139.98/3,970.10
  6. Step 6: Final answer
    x = 2,059.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.