Home / 1,568.66-2,353.75-1,109.39

Finding the Fourth Proportional to 1,568.66, 2,353.75 and 1,109.39

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Solution

The fourth proportional to 1,568.66, 2,353.75 and 1,109.39 is: 1,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.66 : 2,353.75 = 1,109.39 : x
  2. Step 2: Convert to fraction form
    1,568.66/2,353.75 = 1,109.39/x
  3. Step 3: Cross multiply
    1,568.66x = 2,353.75 × 1,109.39
  4. Step 4: Simplify right side
    1,568.66x = 2,611,212.17
  5. Step 5: Solve for x
    x = 2,611,212.17/1,568.66
  6. Step 6: Final answer
    x = 1,664.62

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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.