Home / 3,477.22-5,215.62-1,138.74

Finding the Fourth Proportional to 3,477.22, 5,215.62 and 1,138.74

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Solution

The fourth proportional to 3,477.22, 5,215.62 and 1,138.74 is: 1,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.22 : 5,215.62 = 1,138.74 : x
  2. Step 2: Convert to fraction form
    3,477.22/5,215.62 = 1,138.74/x
  3. Step 3: Cross multiply
    3,477.22x = 5,215.62 × 1,138.74
  4. Step 4: Simplify right side
    3,477.22x = 5,939,235.12
  5. Step 5: Solve for x
    x = 5,939,235.12/3,477.22
  6. Step 6: Final answer
    x = 1,708.04

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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.