Home / 6,679.02-10,015.80-2,978.72

Finding the Fourth Proportional to 6,679.02, 10,015.80 and 2,978.72

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Solution

The fourth proportional to 6,679.02, 10,015.80 and 2,978.72 is: 4,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.02 : 10,015.80 = 2,978.72 : x
  2. Step 2: Convert to fraction form
    6,679.02/10,015.80 = 2,978.72/x
  3. Step 3: Cross multiply
    6,679.02x = 10,015.80 × 2,978.72
  4. Step 4: Simplify right side
    6,679.02x = 29,834,213.70
  5. Step 5: Solve for x
    x = 29,834,213.70/6,679.02
  6. Step 6: Final answer
    x = 4,466.85

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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.