Home / 2,183.80-3,275.70-1,665.40

Finding the Fourth Proportional to 2,183.80, 3,275.70 and 1,665.40

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Solution

The fourth proportional to 2,183.80, 3,275.70 and 1,665.40 is: 2,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.80 : 3,275.70 = 1,665.40 : x
  2. Step 2: Convert to fraction form
    2,183.80/3,275.70 = 1,665.40/x
  3. Step 3: Cross multiply
    2,183.80x = 3,275.70 × 1,665.40
  4. Step 4: Simplify right side
    2,183.80x = 5,455,350.78
  5. Step 5: Solve for x
    x = 5,455,350.78/2,183.80
  6. Step 6: Final answer
    x = 2,498.10

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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.