Home / 3,162.08-4,745.24-1,313.20

Finding the Fourth Proportional to 3,162.08, 4,745.24 and 1,313.20

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Solution

The fourth proportional to 3,162.08, 4,745.24 and 1,313.20 is: 1,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.08 : 4,745.24 = 1,313.20 : x
  2. Step 2: Convert to fraction form
    3,162.08/4,745.24 = 1,313.20/x
  3. Step 3: Cross multiply
    3,162.08x = 4,745.24 × 1,313.20
  4. Step 4: Simplify right side
    3,162.08x = 6,231,449.17
  5. Step 5: Solve for x
    x = 6,231,449.17/3,162.08
  6. Step 6: Final answer
    x = 1,970.68

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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.