Home / 2,057.10-2,838.58-1,394.20

Finding the Fourth Proportional to 2,057.10, 2,838.58 and 1,394.20

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Solution

The fourth proportional to 2,057.10, 2,838.58 and 1,394.20 is: 1,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.10 : 2,838.58 = 1,394.20 : x
  2. Step 2: Convert to fraction form
    2,057.10/2,838.58 = 1,394.20/x
  3. Step 3: Cross multiply
    2,057.10x = 2,838.58 × 1,394.20
  4. Step 4: Simplify right side
    2,057.10x = 3,957,548.24
  5. Step 5: Solve for x
    x = 3,957,548.24/2,057.10
  6. Step 6: Final answer
    x = 1,923.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.