Home / 5,529.16-7,629.46-3,171.40

Finding the Fourth Proportional to 5,529.16, 7,629.46 and 3,171.40

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Solution

The fourth proportional to 5,529.16, 7,629.46 and 3,171.40 is: 4,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.16 : 7,629.46 = 3,171.40 : x
  2. Step 2: Convert to fraction form
    5,529.16/7,629.46 = 3,171.40/x
  3. Step 3: Cross multiply
    5,529.16x = 7,629.46 × 3,171.40
  4. Step 4: Simplify right side
    5,529.16x = 24,196,069.44
  5. Step 5: Solve for x
    x = 24,196,069.44/5,529.16
  6. Step 6: Final answer
    x = 4,376.08

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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.