Home / 6,758.98-10,139.76-2,078.16

Finding the Fourth Proportional to 6,758.98, 10,139.76 and 2,078.16

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Solution

The fourth proportional to 6,758.98, 10,139.76 and 2,078.16 is: 3,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.98 : 10,139.76 = 2,078.16 : x
  2. Step 2: Convert to fraction form
    6,758.98/10,139.76 = 2,078.16/x
  3. Step 3: Cross multiply
    6,758.98x = 10,139.76 × 2,078.16
  4. Step 4: Simplify right side
    6,758.98x = 21,072,043.64
  5. Step 5: Solve for x
    x = 21,072,043.64/6,758.98
  6. Step 6: Final answer
    x = 3,117.64

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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.