Home / 1,629.91-2,247.87-1,257.85

Finding the Fourth Proportional to 1,629.91, 2,247.87 and 1,257.85

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Solution

The fourth proportional to 1,629.91, 2,247.87 and 1,257.85 is: 1,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.91 : 2,247.87 = 1,257.85 : x
  2. Step 2: Convert to fraction form
    1,629.91/2,247.87 = 1,257.85/x
  3. Step 3: Cross multiply
    1,629.91x = 2,247.87 × 1,257.85
  4. Step 4: Simplify right side
    1,629.91x = 2,827,483.28
  5. Step 5: Solve for x
    x = 2,827,483.28/1,629.91
  6. Step 6: Final answer
    x = 1,734.75

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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.