Home / 2,829.60-4,237.56-1,439.28

Finding the Fourth Proportional to 2,829.60, 4,237.56 and 1,439.28

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Solution

The fourth proportional to 2,829.60, 4,237.56 and 1,439.28 is: 2,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.60 : 4,237.56 = 1,439.28 : x
  2. Step 2: Convert to fraction form
    2,829.60/4,237.56 = 1,439.28/x
  3. Step 3: Cross multiply
    2,829.60x = 4,237.56 × 1,439.28
  4. Step 4: Simplify right side
    2,829.60x = 6,099,035.36
  5. Step 5: Solve for x
    x = 6,099,035.36/2,829.60
  6. Step 6: Final answer
    x = 2,155.44

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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.