Home / 5,231.74-7,219.78-2,841.70

Finding the Fourth Proportional to 5,231.74, 7,219.78 and 2,841.70

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Solution

The fourth proportional to 5,231.74, 7,219.78 and 2,841.70 is: 3,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.74 : 7,219.78 = 2,841.70 : x
  2. Step 2: Convert to fraction form
    5,231.74/7,219.78 = 2,841.70/x
  3. Step 3: Cross multiply
    5,231.74x = 7,219.78 × 2,841.70
  4. Step 4: Simplify right side
    5,231.74x = 20,516,448.83
  5. Step 5: Solve for x
    x = 20,516,448.83/5,231.74
  6. Step 6: Final answer
    x = 3,921.53

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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.