Home / 1,778.36-2,456.33-1,305.59

Finding the Fourth Proportional to 1,778.36, 2,456.33 and 1,305.59

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Solution

The fourth proportional to 1,778.36, 2,456.33 and 1,305.59 is: 1,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.36 : 2,456.33 = 1,305.59 : x
  2. Step 2: Convert to fraction form
    1,778.36/2,456.33 = 1,305.59/x
  3. Step 3: Cross multiply
    1,778.36x = 2,456.33 × 1,305.59
  4. Step 4: Simplify right side
    1,778.36x = 3,206,941.08
  5. Step 5: Solve for x
    x = 3,206,941.08/1,778.36
  6. Step 6: Final answer
    x = 1,803.32

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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.