Home / 5,114.71-7,057.83-2,876.68

Finding the Fourth Proportional to 5,114.71, 7,057.83 and 2,876.68

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Solution

The fourth proportional to 5,114.71, 7,057.83 and 2,876.68 is: 3,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.71 : 7,057.83 = 2,876.68 : x
  2. Step 2: Convert to fraction form
    5,114.71/7,057.83 = 2,876.68/x
  3. Step 3: Cross multiply
    5,114.71x = 7,057.83 × 2,876.68
  4. Step 4: Simplify right side
    5,114.71x = 20,303,118.40
  5. Step 5: Solve for x
    x = 20,303,118.40/5,114.71
  6. Step 6: Final answer
    x = 3,969.55

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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.