Home / 5,530.66-7,631.64-3,140.92

Finding the Fourth Proportional to 5,530.66, 7,631.64 and 3,140.92

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Solution

The fourth proportional to 5,530.66, 7,631.64 and 3,140.92 is: 4,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.66 : 7,631.64 = 3,140.92 : x
  2. Step 2: Convert to fraction form
    5,530.66/7,631.64 = 3,140.92/x
  3. Step 3: Cross multiply
    5,530.66x = 7,631.64 × 3,140.92
  4. Step 4: Simplify right side
    5,530.66x = 23,970,351.63
  5. Step 5: Solve for x
    x = 23,970,351.63/5,530.66
  6. Step 6: Final answer
    x = 4,334.09

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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.