Home / 5,729.30-7,905.28-3,372.20

Finding the Fourth Proportional to 5,729.30, 7,905.28 and 3,372.20

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Solution

The fourth proportional to 5,729.30, 7,905.28 and 3,372.20 is: 4,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.30 : 7,905.28 = 3,372.20 : x
  2. Step 2: Convert to fraction form
    5,729.30/7,905.28 = 3,372.20/x
  3. Step 3: Cross multiply
    5,729.30x = 7,905.28 × 3,372.20
  4. Step 4: Simplify right side
    5,729.30x = 26,658,185.22
  5. Step 5: Solve for x
    x = 26,658,185.22/5,729.30
  6. Step 6: Final answer
    x = 4,652.96

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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.