Home / 2,809.57-4,215.30-1,768.36

Finding the Fourth Proportional to 2,809.57, 4,215.30 and 1,768.36

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Solution

The fourth proportional to 2,809.57, 4,215.30 and 1,768.36 is: 2,653.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.57 : 4,215.30 = 1,768.36 : x
  2. Step 2: Convert to fraction form
    2,809.57/4,215.30 = 1,768.36/x
  3. Step 3: Cross multiply
    2,809.57x = 4,215.30 × 1,768.36
  4. Step 4: Simplify right side
    2,809.57x = 7,454,167.91
  5. Step 5: Solve for x
    x = 7,454,167.91/2,809.57
  6. Step 6: Final answer
    x = 2,653.13

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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.