Home / 7,120.11-10,679.02-2,439.93

Finding the Fourth Proportional to 7,120.11, 10,679.02 and 2,439.93

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Solution

The fourth proportional to 7,120.11, 10,679.02 and 2,439.93 is: 3,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.11 : 10,679.02 = 2,439.93 : x
  2. Step 2: Convert to fraction form
    7,120.11/10,679.02 = 2,439.93/x
  3. Step 3: Cross multiply
    7,120.11x = 10,679.02 × 2,439.93
  4. Step 4: Simplify right side
    7,120.11x = 26,056,049.07
  5. Step 5: Solve for x
    x = 26,056,049.07/7,120.11
  6. Step 6: Final answer
    x = 3,659.50

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Double scale
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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.