Home / 2,043.24-2,819.70-1,257

Finding the Fourth Proportional to 2,043.24, 2,819.70 and 1,257

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Solution

The fourth proportional to 2,043.24, 2,819.70 and 1,257 is: 1,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.24 : 2,819.70 = 1,257 : x
  2. Step 2: Convert to fraction form
    2,043.24/2,819.70 = 1,257/x
  3. Step 3: Cross multiply
    2,043.24x = 2,819.70 × 1,257
  4. Step 4: Simplify right side
    2,043.24x = 3,544,362.90
  5. Step 5: Solve for x
    x = 3,544,362.90/2,043.24
  6. Step 6: Final answer
    x = 1,734.68

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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.