Home / 1,778.81-2,455.97-1,150.86

Finding the Fourth Proportional to 1,778.81, 2,455.97 and 1,150.86

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Solution

The fourth proportional to 1,778.81, 2,455.97 and 1,150.86 is: 1,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.81 : 2,455.97 = 1,150.86 : x
  2. Step 2: Convert to fraction form
    1,778.81/2,455.97 = 1,150.86/x
  3. Step 3: Cross multiply
    1,778.81x = 2,455.97 × 1,150.86
  4. Step 4: Simplify right side
    1,778.81x = 2,826,477.63
  5. Step 5: Solve for x
    x = 2,826,477.63/1,778.81
  6. Step 6: Final answer
    x = 1,588.97

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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.