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Finding the Fourth Proportional to 3,448.53, 5,173.61 and 983.38

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Solution

The fourth proportional to 3,448.53, 5,173.61 and 983.38 is: 1,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.53 : 5,173.61 = 983.38 : x
  2. Step 2: Convert to fraction form
    3,448.53/5,173.61 = 983.38/x
  3. Step 3: Cross multiply
    3,448.53x = 5,173.61 × 983.38
  4. Step 4: Simplify right side
    3,448.53x = 5,087,624.60
  5. Step 5: Solve for x
    x = 5,087,624.60/3,448.53
  6. Step 6: Final answer
    x = 1,475.30

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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.