Home / 6,278.10-9,416.64-2,118.02

Finding the Fourth Proportional to 6,278.10, 9,416.64 and 2,118.02

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Solution

The fourth proportional to 6,278.10, 9,416.64 and 2,118.02 is: 3,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.10 : 9,416.64 = 2,118.02 : x
  2. Step 2: Convert to fraction form
    6,278.10/9,416.64 = 2,118.02/x
  3. Step 3: Cross multiply
    6,278.10x = 9,416.64 × 2,118.02
  4. Step 4: Simplify right side
    6,278.10x = 19,944,584.77
  5. Step 5: Solve for x
    x = 19,944,584.77/6,278.10
  6. Step 6: Final answer
    x = 3,176.85

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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.