Home / 1,664.64-2,495.29-1,115.56

Finding the Fourth Proportional to 1,664.64, 2,495.29 and 1,115.56

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Solution

The fourth proportional to 1,664.64, 2,495.29 and 1,115.56 is: 1,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.64 : 2,495.29 = 1,115.56 : x
  2. Step 2: Convert to fraction form
    1,664.64/2,495.29 = 1,115.56/x
  3. Step 3: Cross multiply
    1,664.64x = 2,495.29 × 1,115.56
  4. Step 4: Simplify right side
    1,664.64x = 2,783,645.71
  5. Step 5: Solve for x
    x = 2,783,645.71/1,664.64
  6. Step 6: Final answer
    x = 1,672.22

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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.