Home / 4,651-6,976.50-1,188.28

Finding the Fourth Proportional to 4,651, 6,976.50 and 1,188.28

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Solution

The fourth proportional to 4,651, 6,976.50 and 1,188.28 is: 1,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651 : 6,976.50 = 1,188.28 : x
  2. Step 2: Convert to fraction form
    4,651/6,976.50 = 1,188.28/x
  3. Step 3: Cross multiply
    4,651x = 6,976.50 × 1,188.28
  4. Step 4: Simplify right side
    4,651x = 8,290,035.42
  5. Step 5: Solve for x
    x = 8,290,035.42/4,651
  6. Step 6: Final answer
    x = 1,782.42

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Double scale
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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.