Home / 2,839.47-4,254.87-1,911.60

Finding the Fourth Proportional to 2,839.47, 4,254.87 and 1,911.60

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Solution

The fourth proportional to 2,839.47, 4,254.87 and 1,911.60 is: 2,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.47 : 4,254.87 = 1,911.60 : x
  2. Step 2: Convert to fraction form
    2,839.47/4,254.87 = 1,911.60/x
  3. Step 3: Cross multiply
    2,839.47x = 4,254.87 × 1,911.60
  4. Step 4: Simplify right side
    2,839.47x = 8,133,609.49
  5. Step 5: Solve for x
    x = 8,133,609.49/2,839.47
  6. Step 6: Final answer
    x = 2,864.48

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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.