Home / 5,179.12-7,772.78-2,259.47

Finding the Fourth Proportional to 5,179.12, 7,772.78 and 2,259.47

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Solution

The fourth proportional to 5,179.12, 7,772.78 and 2,259.47 is: 3,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.12 : 7,772.78 = 2,259.47 : x
  2. Step 2: Convert to fraction form
    5,179.12/7,772.78 = 2,259.47/x
  3. Step 3: Cross multiply
    5,179.12x = 7,772.78 × 2,259.47
  4. Step 4: Simplify right side
    5,179.12x = 17,562,371.36
  5. Step 5: Solve for x
    x = 17,562,371.36/5,179.12
  6. Step 6: Final answer
    x = 3,391.00

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1.5x scale

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.