Home / 3,145.72-4,339.30-1,950.16

Finding the Fourth Proportional to 3,145.72, 4,339.30 and 1,950.16

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Solution

The fourth proportional to 3,145.72, 4,339.30 and 1,950.16 is: 2,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.72 : 4,339.30 = 1,950.16 : x
  2. Step 2: Convert to fraction form
    3,145.72/4,339.30 = 1,950.16/x
  3. Step 3: Cross multiply
    3,145.72x = 4,339.30 × 1,950.16
  4. Step 4: Simplify right side
    3,145.72x = 8,462,329.29
  5. Step 5: Solve for x
    x = 8,462,329.29/3,145.72
  6. Step 6: Final answer
    x = 2,690.11

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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.