Home / 5,133.49-7,688.01-3,278.86

Finding the Fourth Proportional to 5,133.49, 7,688.01 and 3,278.86

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Solution

The fourth proportional to 5,133.49, 7,688.01 and 3,278.86 is: 4,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.49 : 7,688.01 = 3,278.86 : x
  2. Step 2: Convert to fraction form
    5,133.49/7,688.01 = 3,278.86/x
  3. Step 3: Cross multiply
    5,133.49x = 7,688.01 × 3,278.86
  4. Step 4: Simplify right side
    5,133.49x = 25,207,908.47
  5. Step 5: Solve for x
    x = 25,207,908.47/5,133.49
  6. Step 6: Final answer
    x = 4,910.48

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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.