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Finding the Fourth Proportional to 7,160.81, 10,741.95 and 2,480.81

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Solution

The fourth proportional to 7,160.81, 10,741.95 and 2,480.81 is: 3,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.81 : 10,741.95 = 2,480.81 : x
  2. Step 2: Convert to fraction form
    7,160.81/10,741.95 = 2,480.81/x
  3. Step 3: Cross multiply
    7,160.81x = 10,741.95 × 2,480.81
  4. Step 4: Simplify right side
    7,160.81x = 26,648,736.98
  5. Step 5: Solve for x
    x = 26,648,736.98/7,160.81
  6. Step 6: Final answer
    x = 3,721.47

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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.