Home / 4,229.40-6,368.24-3,970.20

Finding the Fourth Proportional to 4,229.40, 6,368.24 and 3,970.20

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Solution

The fourth proportional to 4,229.40, 6,368.24 and 3,970.20 is: 5,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,229.40 : 6,368.24 = 3,970.20 : x
  2. Step 2: Convert to fraction form
    4,229.40/6,368.24 = 3,970.20/x
  3. Step 3: Cross multiply
    4,229.40x = 6,368.24 × 3,970.20
  4. Step 4: Simplify right side
    4,229.40x = 25,283,186.45
  5. Step 5: Solve for x
    x = 25,283,186.45/4,229.40
  6. Step 6: Final answer
    x = 5,977.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.