Home / 5,208.42-7,187.76-3,113.76

Finding the Fourth Proportional to 5,208.42, 7,187.76 and 3,113.76

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Solution

The fourth proportional to 5,208.42, 7,187.76 and 3,113.76 is: 4,297.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.42 : 7,187.76 = 3,113.76 : x
  2. Step 2: Convert to fraction form
    5,208.42/7,187.76 = 3,113.76/x
  3. Step 3: Cross multiply
    5,208.42x = 7,187.76 × 3,113.76
  4. Step 4: Simplify right side
    5,208.42x = 22,380,959.58
  5. Step 5: Solve for x
    x = 22,380,959.58/5,208.42
  6. Step 6: Final answer
    x = 4,297.07

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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.