Home / 3,970.64-5,467.02-3,371.90

Finding the Fourth Proportional to 3,970.64, 5,467.02 and 3,371.90

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Solution

The fourth proportional to 3,970.64, 5,467.02 and 3,371.90 is: 4,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.64 : 5,467.02 = 3,371.90 : x
  2. Step 2: Convert to fraction form
    3,970.64/5,467.02 = 3,371.90/x
  3. Step 3: Cross multiply
    3,970.64x = 5,467.02 × 3,371.90
  4. Step 4: Simplify right side
    3,970.64x = 18,434,244.74
  5. Step 5: Solve for x
    x = 18,434,244.74/3,970.64
  6. Step 6: Final answer
    x = 4,642.64

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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.