Home / 5,275.78-7,273.99-3,858.33

Finding the Fourth Proportional to 5,275.78, 7,273.99 and 3,858.33

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Solution

The fourth proportional to 5,275.78, 7,273.99 and 3,858.33 is: 5,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.78 : 7,273.99 = 3,858.33 : x
  2. Step 2: Convert to fraction form
    5,275.78/7,273.99 = 3,858.33/x
  3. Step 3: Cross multiply
    5,275.78x = 7,273.99 × 3,858.33
  4. Step 4: Simplify right side
    5,275.78x = 28,065,434.55
  5. Step 5: Solve for x
    x = 28,065,434.55/5,275.78
  6. Step 6: Final answer
    x = 5,319.68

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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.