Home / 5,208.68-7,187.93-2,818.60

Finding the Fourth Proportional to 5,208.68, 7,187.93 and 2,818.60

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Solution

The fourth proportional to 5,208.68, 7,187.93 and 2,818.60 is: 3,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.68 : 7,187.93 = 2,818.60 : x
  2. Step 2: Convert to fraction form
    5,208.68/7,187.93 = 2,818.60/x
  3. Step 3: Cross multiply
    5,208.68x = 7,187.93 × 2,818.60
  4. Step 4: Simplify right side
    5,208.68x = 20,259,849.47
  5. Step 5: Solve for x
    x = 20,259,849.47/5,208.68
  6. Step 6: Final answer
    x = 3,889.63

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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.