Home / 2,135.60-3,201.51-1,039.76

Finding the Fourth Proportional to 2,135.60, 3,201.51 and 1,039.76

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Solution

The fourth proportional to 2,135.60, 3,201.51 and 1,039.76 is: 1,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.60 : 3,201.51 = 1,039.76 : x
  2. Step 2: Convert to fraction form
    2,135.60/3,201.51 = 1,039.76/x
  3. Step 3: Cross multiply
    2,135.60x = 3,201.51 × 1,039.76
  4. Step 4: Simplify right side
    2,135.60x = 3,328,802.04
  5. Step 5: Solve for x
    x = 3,328,802.04/2,135.60
  6. Step 6: Final answer
    x = 1,558.72

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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.