Home / 2,569.40-3,857.70-2,022.20

Finding the Fourth Proportional to 2,569.40, 3,857.70 and 2,022.20

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Solution

The fourth proportional to 2,569.40, 3,857.70 and 2,022.20 is: 3,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.40 : 3,857.70 = 2,022.20 : x
  2. Step 2: Convert to fraction form
    2,569.40/3,857.70 = 2,022.20/x
  3. Step 3: Cross multiply
    2,569.40x = 3,857.70 × 2,022.20
  4. Step 4: Simplify right side
    2,569.40x = 7,801,040.94
  5. Step 5: Solve for x
    x = 7,801,040.94/2,569.40
  6. Step 6: Final answer
    x = 3,036.13

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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.