Home / 7,718.58-11,577.87-3,100.50

Finding the Fourth Proportional to 7,718.58, 11,577.87 and 3,100.50

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Solution

The fourth proportional to 7,718.58, 11,577.87 and 3,100.50 is: 4,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.58 : 11,577.87 = 3,100.50 : x
  2. Step 2: Convert to fraction form
    7,718.58/11,577.87 = 3,100.50/x
  3. Step 3: Cross multiply
    7,718.58x = 11,577.87 × 3,100.50
  4. Step 4: Simplify right side
    7,718.58x = 35,897,185.94
  5. Step 5: Solve for x
    x = 35,897,185.94/7,718.58
  6. Step 6: Final answer
    x = 4,650.75

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Half scale
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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.