Home / 4,983.60-7,475.40-3,428.40

Finding the Fourth Proportional to 4,983.60, 7,475.40 and 3,428.40

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Solution

The fourth proportional to 4,983.60, 7,475.40 and 3,428.40 is: 5,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.60 : 7,475.40 = 3,428.40 : x
  2. Step 2: Convert to fraction form
    4,983.60/7,475.40 = 3,428.40/x
  3. Step 3: Cross multiply
    4,983.60x = 7,475.40 × 3,428.40
  4. Step 4: Simplify right side
    4,983.60x = 25,628,661.36
  5. Step 5: Solve for x
    x = 25,628,661.36/4,983.60
  6. Step 6: Final answer
    x = 5,142.60

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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.