Home / 4,789.08-7,184-1,279.10

Finding the Fourth Proportional to 4,789.08, 7,184 and 1,279.10

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Solution

The fourth proportional to 4,789.08, 7,184 and 1,279.10 is: 1,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.08 : 7,184 = 1,279.10 : x
  2. Step 2: Convert to fraction form
    4,789.08/7,184 = 1,279.10/x
  3. Step 3: Cross multiply
    4,789.08x = 7,184 × 1,279.10
  4. Step 4: Simplify right side
    4,789.08x = 9,189,054.40
  5. Step 5: Solve for x
    x = 9,189,054.40/4,789.08
  6. Step 6: Final answer
    x = 1,918.75

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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.