Home / 5,290.78-7,297.29-3,166.15

Finding the Fourth Proportional to 5,290.78, 7,297.29 and 3,166.15

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Solution

The fourth proportional to 5,290.78, 7,297.29 and 3,166.15 is: 4,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.78 : 7,297.29 = 3,166.15 : x
  2. Step 2: Convert to fraction form
    5,290.78/7,297.29 = 3,166.15/x
  3. Step 3: Cross multiply
    5,290.78x = 7,297.29 × 3,166.15
  4. Step 4: Simplify right side
    5,290.78x = 23,104,314.73
  5. Step 5: Solve for x
    x = 23,104,314.73/5,290.78
  6. Step 6: Final answer
    x = 4,366.90

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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.