Home / 7,480.29-11,219.54-3,977.45

Finding the Fourth Proportional to 7,480.29, 11,219.54 and 3,977.45

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Solution

The fourth proportional to 7,480.29, 11,219.54 and 3,977.45 is: 5,965.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.29 : 11,219.54 = 3,977.45 : x
  2. Step 2: Convert to fraction form
    7,480.29/11,219.54 = 3,977.45/x
  3. Step 3: Cross multiply
    7,480.29x = 11,219.54 × 3,977.45
  4. Step 4: Simplify right side
    7,480.29x = 44,625,083.39
  5. Step 5: Solve for x
    x = 44,625,083.39/7,480.29
  6. Step 6: Final answer
    x = 5,965.69

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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.