Home / 5,112.80-7,055.93-3,223.70

Finding the Fourth Proportional to 5,112.80, 7,055.93 and 3,223.70

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Solution

The fourth proportional to 5,112.80, 7,055.93 and 3,223.70 is: 4,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.80 : 7,055.93 = 3,223.70 : x
  2. Step 2: Convert to fraction form
    5,112.80/7,055.93 = 3,223.70/x
  3. Step 3: Cross multiply
    5,112.80x = 7,055.93 × 3,223.70
  4. Step 4: Simplify right side
    5,112.80x = 22,746,201.54
  5. Step 5: Solve for x
    x = 22,746,201.54/5,112.80
  6. Step 6: Final answer
    x = 4,448.87

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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.