Home / 1,508.40-2,083.32-1,201.68

Finding the Fourth Proportional to 1,508.40, 2,083.32 and 1,201.68

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Solution

The fourth proportional to 1,508.40, 2,083.32 and 1,201.68 is: 1,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.40 : 2,083.32 = 1,201.68 : x
  2. Step 2: Convert to fraction form
    1,508.40/2,083.32 = 1,201.68/x
  3. Step 3: Cross multiply
    1,508.40x = 2,083.32 × 1,201.68
  4. Step 4: Simplify right side
    1,508.40x = 2,503,483.98
  5. Step 5: Solve for x
    x = 2,503,483.98/1,508.40
  6. Step 6: Final answer
    x = 1,659.70

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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.