Home / 1,778.56-2,446.61-1,446.26

Finding the Fourth Proportional to 1,778.56, 2,446.61 and 1,446.26

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Solution

The fourth proportional to 1,778.56, 2,446.61 and 1,446.26 is: 1,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.56 : 2,446.61 = 1,446.26 : x
  2. Step 2: Convert to fraction form
    1,778.56/2,446.61 = 1,446.26/x
  3. Step 3: Cross multiply
    1,778.56x = 2,446.61 × 1,446.26
  4. Step 4: Simplify right side
    1,778.56x = 3,538,414.71
  5. Step 5: Solve for x
    x = 3,538,414.71/1,778.56
  6. Step 6: Final answer
    x = 1,989.49

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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.