Home / 6,646.09-9,171.32-3,811.50

Finding the Fourth Proportional to 6,646.09, 9,171.32 and 3,811.50

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Solution

The fourth proportional to 6,646.09, 9,171.32 and 3,811.50 is: 5,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646.09 : 9,171.32 = 3,811.50 : x
  2. Step 2: Convert to fraction form
    6,646.09/9,171.32 = 3,811.50/x
  3. Step 3: Cross multiply
    6,646.09x = 9,171.32 × 3,811.50
  4. Step 4: Simplify right side
    6,646.09x = 34,956,449.85
  5. Step 5: Solve for x
    x = 34,956,449.85/6,646.09
  6. Step 6: Final answer
    x = 5,259.70

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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.