Home / 7,108.28-10,662.42-2,490.20

Finding the Fourth Proportional to 7,108.28, 10,662.42 and 2,490.20

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Solution

The fourth proportional to 7,108.28, 10,662.42 and 2,490.20 is: 3,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.28 : 10,662.42 = 2,490.20 : x
  2. Step 2: Convert to fraction form
    7,108.28/10,662.42 = 2,490.20/x
  3. Step 3: Cross multiply
    7,108.28x = 10,662.42 × 2,490.20
  4. Step 4: Simplify right side
    7,108.28x = 26,551,558.28
  5. Step 5: Solve for x
    x = 26,551,558.28/7,108.28
  6. Step 6: Final answer
    x = 3,735.30

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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.