Home / 1,778.24-2,664.38-1,257.27

Finding the Fourth Proportional to 1,778.24, 2,664.38 and 1,257.27

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Solution

The fourth proportional to 1,778.24, 2,664.38 and 1,257.27 is: 1,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.24 : 2,664.38 = 1,257.27 : x
  2. Step 2: Convert to fraction form
    1,778.24/2,664.38 = 1,257.27/x
  3. Step 3: Cross multiply
    1,778.24x = 2,664.38 × 1,257.27
  4. Step 4: Simplify right side
    1,778.24x = 3,349,838.76
  5. Step 5: Solve for x
    x = 3,349,838.76/1,778.24
  6. Step 6: Final answer
    x = 1,883.80

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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.