Home / 2,829.10-4,236.81-1,438.78

Finding the Fourth Proportional to 2,829.10, 4,236.81 and 1,438.78

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Solution

The fourth proportional to 2,829.10, 4,236.81 and 1,438.78 is: 2,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.10 : 4,236.81 = 1,438.78 : x
  2. Step 2: Convert to fraction form
    2,829.10/4,236.81 = 1,438.78/x
  3. Step 3: Cross multiply
    2,829.10x = 4,236.81 × 1,438.78
  4. Step 4: Simplify right side
    2,829.10x = 6,095,837.49
  5. Step 5: Solve for x
    x = 6,095,837.49/2,829.10
  6. Step 6: Final answer
    x = 2,154.69

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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.