Home / 2,039.40-3,059.10-1,578.60

Finding the Fourth Proportional to 2,039.40, 3,059.10 and 1,578.60

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Solution

The fourth proportional to 2,039.40, 3,059.10 and 1,578.60 is: 2,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.40 : 3,059.10 = 1,578.60 : x
  2. Step 2: Convert to fraction form
    2,039.40/3,059.10 = 1,578.60/x
  3. Step 3: Cross multiply
    2,039.40x = 3,059.10 × 1,578.60
  4. Step 4: Simplify right side
    2,039.40x = 4,829,095.26
  5. Step 5: Solve for x
    x = 4,829,095.26/2,039.40
  6. Step 6: Final answer
    x = 2,367.90

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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.