Home / 6,459.45-9,689.99-2,076.81

Finding the Fourth Proportional to 6,459.45, 9,689.99 and 2,076.81

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Solution

The fourth proportional to 6,459.45, 9,689.99 and 2,076.81 is: 3,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.45 : 9,689.99 = 2,076.81 : x
  2. Step 2: Convert to fraction form
    6,459.45/9,689.99 = 2,076.81/x
  3. Step 3: Cross multiply
    6,459.45x = 9,689.99 × 2,076.81
  4. Step 4: Simplify right side
    6,459.45x = 20,124,268.13
  5. Step 5: Solve for x
    x = 20,124,268.13/6,459.45
  6. Step 6: Final answer
    x = 3,115.48

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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.