Home / 6,374.22-9,561.34-1,991.70

Finding the Fourth Proportional to 6,374.22, 9,561.34 and 1,991.70

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Solution

The fourth proportional to 6,374.22, 9,561.34 and 1,991.70 is: 2,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.22 : 9,561.34 = 1,991.70 : x
  2. Step 2: Convert to fraction form
    6,374.22/9,561.34 = 1,991.70/x
  3. Step 3: Cross multiply
    6,374.22x = 9,561.34 × 1,991.70
  4. Step 4: Simplify right side
    6,374.22x = 19,043,320.88
  5. Step 5: Solve for x
    x = 19,043,320.88/6,374.22
  6. Step 6: Final answer
    x = 2,987.55

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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.