Home / 3,350.20-5,018.10-1,809.40

Finding the Fourth Proportional to 3,350.20, 5,018.10 and 1,809.40

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Solution

The fourth proportional to 3,350.20, 5,018.10 and 1,809.40 is: 2,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,350.20 : 5,018.10 = 1,809.40 : x
  2. Step 2: Convert to fraction form
    3,350.20/5,018.10 = 1,809.40/x
  3. Step 3: Cross multiply
    3,350.20x = 5,018.10 × 1,809.40
  4. Step 4: Simplify right side
    3,350.20x = 9,079,750.14
  5. Step 5: Solve for x
    x = 9,079,750.14/3,350.20
  6. Step 6: Final answer
    x = 2,710.21

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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.