Home / 6,910.11-10,363.75-1,978.83

Finding the Fourth Proportional to 6,910.11, 10,363.75 and 1,978.83

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Solution

The fourth proportional to 6,910.11, 10,363.75 and 1,978.83 is: 2,967.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.11 : 10,363.75 = 1,978.83 : x
  2. Step 2: Convert to fraction form
    6,910.11/10,363.75 = 1,978.83/x
  3. Step 3: Cross multiply
    6,910.11x = 10,363.75 × 1,978.83
  4. Step 4: Simplify right side
    6,910.11x = 20,508,094.47
  5. Step 5: Solve for x
    x = 20,508,094.47/6,910.11
  6. Step 6: Final answer
    x = 2,967.84

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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.