Home / 2,839.37-3,918.29-1,580.39

Finding the Fourth Proportional to 2,839.37, 3,918.29 and 1,580.39

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Solution

The fourth proportional to 2,839.37, 3,918.29 and 1,580.39 is: 2,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.37 : 3,918.29 = 1,580.39 : x
  2. Step 2: Convert to fraction form
    2,839.37/3,918.29 = 1,580.39/x
  3. Step 3: Cross multiply
    2,839.37x = 3,918.29 × 1,580.39
  4. Step 4: Simplify right side
    2,839.37x = 6,192,440.08
  5. Step 5: Solve for x
    x = 6,192,440.08/2,839.37
  6. Step 6: Final answer
    x = 2,180.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.