Home / 5,518.13-7,609.77-3,631.32

Finding the Fourth Proportional to 5,518.13, 7,609.77 and 3,631.32

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Solution

The fourth proportional to 5,518.13, 7,609.77 and 3,631.32 is: 5,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.13 : 7,609.77 = 3,631.32 : x
  2. Step 2: Convert to fraction form
    5,518.13/7,609.77 = 3,631.32/x
  3. Step 3: Cross multiply
    5,518.13x = 7,609.77 × 3,631.32
  4. Step 4: Simplify right side
    5,518.13x = 27,633,510.00
  5. Step 5: Solve for x
    x = 27,633,510.00/5,518.13
  6. Step 6: Final answer
    x = 5,007.77

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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.