Home / 1,407.39-2,112.57-1,150.35

Finding the Fourth Proportional to 1,407.39, 2,112.57 and 1,150.35

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Solution

The fourth proportional to 1,407.39, 2,112.57 and 1,150.35 is: 1,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.39 : 2,112.57 = 1,150.35 : x
  2. Step 2: Convert to fraction form
    1,407.39/2,112.57 = 1,150.35/x
  3. Step 3: Cross multiply
    1,407.39x = 2,112.57 × 1,150.35
  4. Step 4: Simplify right side
    1,407.39x = 2,430,194.90
  5. Step 5: Solve for x
    x = 2,430,194.90/1,407.39
  6. Step 6: Final answer
    x = 1,726.74

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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.