Home / 1,190.52-1,785.80-1,126.26

Finding the Fourth Proportional to 1,190.52, 1,785.80 and 1,126.26

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Solution

The fourth proportional to 1,190.52, 1,785.80 and 1,126.26 is: 1,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.52 : 1,785.80 = 1,126.26 : x
  2. Step 2: Convert to fraction form
    1,190.52/1,785.80 = 1,126.26/x
  3. Step 3: Cross multiply
    1,190.52x = 1,785.80 × 1,126.26
  4. Step 4: Simplify right side
    1,190.52x = 2,011,275.11
  5. Step 5: Solve for x
    x = 2,011,275.11/1,190.52
  6. Step 6: Final answer
    x = 1,689.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.