Home / 7,099.74-10,649.61-1,906.14

Finding the Fourth Proportional to 7,099.74, 10,649.61 and 1,906.14

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Solution

The fourth proportional to 7,099.74, 10,649.61 and 1,906.14 is: 2,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.74 : 10,649.61 = 1,906.14 : x
  2. Step 2: Convert to fraction form
    7,099.74/10,649.61 = 1,906.14/x
  3. Step 3: Cross multiply
    7,099.74x = 10,649.61 × 1,906.14
  4. Step 4: Simplify right side
    7,099.74x = 20,299,647.61
  5. Step 5: Solve for x
    x = 20,299,647.61/7,099.74
  6. Step 6: Final answer
    x = 2,859.21

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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.