Home / 5,530.16-7,631.54-3,172.24

Finding the Fourth Proportional to 5,530.16, 7,631.54 and 3,172.24

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Solution

The fourth proportional to 5,530.16, 7,631.54 and 3,172.24 is: 4,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.16 : 7,631.54 = 3,172.24 : x
  2. Step 2: Convert to fraction form
    5,530.16/7,631.54 = 3,172.24/x
  3. Step 3: Cross multiply
    5,530.16x = 7,631.54 × 3,172.24
  4. Step 4: Simplify right side
    5,530.16x = 24,209,076.45
  5. Step 5: Solve for x
    x = 24,209,076.45/5,530.16
  6. Step 6: Final answer
    x = 4,377.64

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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.