Home / 7,741.98-11,612.18-2,120.15

Finding the Fourth Proportional to 7,741.98, 11,612.18 and 2,120.15

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Solution

The fourth proportional to 7,741.98, 11,612.18 and 2,120.15 is: 3,180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.98 : 11,612.18 = 2,120.15 : x
  2. Step 2: Convert to fraction form
    7,741.98/11,612.18 = 2,120.15/x
  3. Step 3: Cross multiply
    7,741.98x = 11,612.18 × 2,120.15
  4. Step 4: Simplify right side
    7,741.98x = 24,619,597.76
  5. Step 5: Solve for x
    x = 24,619,597.76/7,741.98
  6. Step 6: Final answer
    x = 3,180.01

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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.