Home / 5,110.67-7,053.81-3,015.20

Finding the Fourth Proportional to 5,110.67, 7,053.81 and 3,015.20

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Solution

The fourth proportional to 5,110.67, 7,053.81 and 3,015.20 is: 4,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.67 : 7,053.81 = 3,015.20 : x
  2. Step 2: Convert to fraction form
    5,110.67/7,053.81 = 3,015.20/x
  3. Step 3: Cross multiply
    5,110.67x = 7,053.81 × 3,015.20
  4. Step 4: Simplify right side
    5,110.67x = 21,268,647.91
  5. Step 5: Solve for x
    x = 21,268,647.91/5,110.67
  6. Step 6: Final answer
    x = 4,161.62

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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.