Home / 2,379.08-3,284.16-1,789.76

Finding the Fourth Proportional to 2,379.08, 3,284.16 and 1,789.76

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Solution

The fourth proportional to 2,379.08, 3,284.16 and 1,789.76 is: 2,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.08 : 3,284.16 = 1,789.76 : x
  2. Step 2: Convert to fraction form
    2,379.08/3,284.16 = 1,789.76/x
  3. Step 3: Cross multiply
    2,379.08x = 3,284.16 × 1,789.76
  4. Step 4: Simplify right side
    2,379.08x = 5,877,858.20
  5. Step 5: Solve for x
    x = 5,877,858.20/2,379.08
  6. Step 6: Final answer
    x = 2,470.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.