Home / 5,269.87-7,905.62-1,983.20

Finding the Fourth Proportional to 5,269.87, 7,905.62 and 1,983.20

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Solution

The fourth proportional to 5,269.87, 7,905.62 and 1,983.20 is: 2,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.87 : 7,905.62 = 1,983.20 : x
  2. Step 2: Convert to fraction form
    5,269.87/7,905.62 = 1,983.20/x
  3. Step 3: Cross multiply
    5,269.87x = 7,905.62 × 1,983.20
  4. Step 4: Simplify right side
    5,269.87x = 15,678,376.14
  5. Step 5: Solve for x
    x = 15,678,376.14/5,269.87
  6. Step 6: Final answer
    x = 2,975.10

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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.