Home / 6,489.21-9,725.35-2,977.95

Finding the Fourth Proportional to 6,489.21, 9,725.35 and 2,977.95

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Solution

The fourth proportional to 6,489.21, 9,725.35 and 2,977.95 is: 4,463.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.21 : 9,725.35 = 2,977.95 : x
  2. Step 2: Convert to fraction form
    6,489.21/9,725.35 = 2,977.95/x
  3. Step 3: Cross multiply
    6,489.21x = 9,725.35 × 2,977.95
  4. Step 4: Simplify right side
    6,489.21x = 28,961,542.52
  5. Step 5: Solve for x
    x = 28,961,542.52/6,489.21
  6. Step 6: Final answer
    x = 4,463.03

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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.