Home / 3,132.30-4,695.36-1,378.25

Finding the Fourth Proportional to 3,132.30, 4,695.36 and 1,378.25

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Solution

The fourth proportional to 3,132.30, 4,695.36 and 1,378.25 is: 2,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.30 : 4,695.36 = 1,378.25 : x
  2. Step 2: Convert to fraction form
    3,132.30/4,695.36 = 1,378.25/x
  3. Step 3: Cross multiply
    3,132.30x = 4,695.36 × 1,378.25
  4. Step 4: Simplify right side
    3,132.30x = 6,471,379.92
  5. Step 5: Solve for x
    x = 6,471,379.92/3,132.30
  6. Step 6: Final answer
    x = 2,066.02

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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.