Home / 2,057.60-2,839.28-1,394.70

Finding the Fourth Proportional to 2,057.60, 2,839.28 and 1,394.70

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Solution

The fourth proportional to 2,057.60, 2,839.28 and 1,394.70 is: 1,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.60 : 2,839.28 = 1,394.70 : x
  2. Step 2: Convert to fraction form
    2,057.60/2,839.28 = 1,394.70/x
  3. Step 3: Cross multiply
    2,057.60x = 2,839.28 × 1,394.70
  4. Step 4: Simplify right side
    2,057.60x = 3,959,936.84
  5. Step 5: Solve for x
    x = 3,959,936.84/2,057.60
  6. Step 6: Final answer
    x = 1,924.55

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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.