Home / 1,778.26-2,453.12-1,149.32

Finding the Fourth Proportional to 1,778.26, 2,453.12 and 1,149.32

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Solution

The fourth proportional to 1,778.26, 2,453.12 and 1,149.32 is: 1,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.26 : 2,453.12 = 1,149.32 : x
  2. Step 2: Convert to fraction form
    1,778.26/2,453.12 = 1,149.32/x
  3. Step 3: Cross multiply
    1,778.26x = 2,453.12 × 1,149.32
  4. Step 4: Simplify right side
    1,778.26x = 2,819,428.88
  5. Step 5: Solve for x
    x = 2,819,428.88/1,778.26
  6. Step 6: Final answer
    x = 1,585.50

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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.