Home / 5,189.78-7,785.66-2,848.50

Finding the Fourth Proportional to 5,189.78, 7,785.66 and 2,848.50

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Solution

The fourth proportional to 5,189.78, 7,785.66 and 2,848.50 is: 4,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.78 : 7,785.66 = 2,848.50 : x
  2. Step 2: Convert to fraction form
    5,189.78/7,785.66 = 2,848.50/x
  3. Step 3: Cross multiply
    5,189.78x = 7,785.66 × 2,848.50
  4. Step 4: Simplify right side
    5,189.78x = 22,177,452.51
  5. Step 5: Solve for x
    x = 22,177,452.51/5,189.78
  6. Step 6: Final answer
    x = 4,273.29

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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.