Home / 1,325.07-1,826.82-1,137.75

Finding the Fourth Proportional to 1,325.07, 1,826.82 and 1,137.75

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Solution

The fourth proportional to 1,325.07, 1,826.82 and 1,137.75 is: 1,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.07 : 1,826.82 = 1,137.75 : x
  2. Step 2: Convert to fraction form
    1,325.07/1,826.82 = 1,137.75/x
  3. Step 3: Cross multiply
    1,325.07x = 1,826.82 × 1,137.75
  4. Step 4: Simplify right side
    1,325.07x = 2,078,464.46
  5. Step 5: Solve for x
    x = 2,078,464.46/1,325.07
  6. Step 6: Final answer
    x = 1,568.57

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Half scale
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Double scale
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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.