Home / 7,789.79-11,684.62-1,946.36

Finding the Fourth Proportional to 7,789.79, 11,684.62 and 1,946.36

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Solution

The fourth proportional to 7,789.79, 11,684.62 and 1,946.36 is: 2,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.79 : 11,684.62 = 1,946.36 : x
  2. Step 2: Convert to fraction form
    7,789.79/11,684.62 = 1,946.36/x
  3. Step 3: Cross multiply
    7,789.79x = 11,684.62 × 1,946.36
  4. Step 4: Simplify right side
    7,789.79x = 22,742,476.98
  5. Step 5: Solve for x
    x = 22,742,476.98/7,789.79
  6. Step 6: Final answer
    x = 2,919.52

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Double scale
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Similar ratio
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1.5x scale

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.