Home / 4,739.31-7,107.75-2,515.12

Finding the Fourth Proportional to 4,739.31, 7,107.75 and 2,515.12

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Solution

The fourth proportional to 4,739.31, 7,107.75 and 2,515.12 is: 3,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.31 : 7,107.75 = 2,515.12 : x
  2. Step 2: Convert to fraction form
    4,739.31/7,107.75 = 2,515.12/x
  3. Step 3: Cross multiply
    4,739.31x = 7,107.75 × 2,515.12
  4. Step 4: Simplify right side
    4,739.31x = 17,876,826.41
  5. Step 5: Solve for x
    x = 17,876,826.41/4,739.31
  6. Step 6: Final answer
    x = 3,772.03

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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.