Home / 7,099.38-10,649.34-1,905.39

Finding the Fourth Proportional to 7,099.38, 10,649.34 and 1,905.39

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Solution

The fourth proportional to 7,099.38, 10,649.34 and 1,905.39 is: 2,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.38 : 10,649.34 = 1,905.39 : x
  2. Step 2: Convert to fraction form
    7,099.38/10,649.34 = 1,905.39/x
  3. Step 3: Cross multiply
    7,099.38x = 10,649.34 × 1,905.39
  4. Step 4: Simplify right side
    7,099.38x = 20,291,145.94
  5. Step 5: Solve for x
    x = 20,291,145.94/7,099.38
  6. Step 6: Final answer
    x = 2,858.16

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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.