Home / 6,998.10-9,657.50-3,811.49

Finding the Fourth Proportional to 6,998.10, 9,657.50 and 3,811.49

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Solution

The fourth proportional to 6,998.10, 9,657.50 and 3,811.49 is: 5,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.10 : 9,657.50 = 3,811.49 : x
  2. Step 2: Convert to fraction form
    6,998.10/9,657.50 = 3,811.49/x
  3. Step 3: Cross multiply
    6,998.10x = 9,657.50 × 3,811.49
  4. Step 4: Simplify right side
    6,998.10x = 36,809,464.68
  5. Step 5: Solve for x
    x = 36,809,464.68/6,998.10
  6. Step 6: Final answer
    x = 5,259.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.