Home / 3,145.37-4,339.98-2,675.16

Finding the Fourth Proportional to 3,145.37, 4,339.98 and 2,675.16

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Solution

The fourth proportional to 3,145.37, 4,339.98 and 2,675.16 is: 3,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.37 : 4,339.98 = 2,675.16 : x
  2. Step 2: Convert to fraction form
    3,145.37/4,339.98 = 2,675.16/x
  3. Step 3: Cross multiply
    3,145.37x = 4,339.98 × 2,675.16
  4. Step 4: Simplify right side
    3,145.37x = 11,610,140.90
  5. Step 5: Solve for x
    x = 11,610,140.90/3,145.37
  6. Step 6: Final answer
    x = 3,691.19

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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.