Home / 2,046.57-2,823.78-1,207.21

Finding the Fourth Proportional to 2,046.57, 2,823.78 and 1,207.21

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Solution

The fourth proportional to 2,046.57, 2,823.78 and 1,207.21 is: 1,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,046.57 : 2,823.78 = 1,207.21 : x
  2. Step 2: Convert to fraction form
    2,046.57/2,823.78 = 1,207.21/x
  3. Step 3: Cross multiply
    2,046.57x = 2,823.78 × 1,207.21
  4. Step 4: Simplify right side
    2,046.57x = 3,408,895.45
  5. Step 5: Solve for x
    x = 3,408,895.45/2,046.57
  6. Step 6: Final answer
    x = 1,665.66

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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.