Home / 6,909.16-10,360.62-1,977.64

Finding the Fourth Proportional to 6,909.16, 10,360.62 and 1,977.64

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Solution

The fourth proportional to 6,909.16, 10,360.62 and 1,977.64 is: 2,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.16 : 10,360.62 = 1,977.64 : x
  2. Step 2: Convert to fraction form
    6,909.16/10,360.62 = 1,977.64/x
  3. Step 3: Cross multiply
    6,909.16x = 10,360.62 × 1,977.64
  4. Step 4: Simplify right side
    6,909.16x = 20,489,576.54
  5. Step 5: Solve for x
    x = 20,489,576.54/6,909.16
  6. Step 6: Final answer
    x = 2,965.57

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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.