Home / 5,031.64-6,942.25-3,145.14

Finding the Fourth Proportional to 5,031.64, 6,942.25 and 3,145.14

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Solution

The fourth proportional to 5,031.64, 6,942.25 and 3,145.14 is: 4,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.64 : 6,942.25 = 3,145.14 : x
  2. Step 2: Convert to fraction form
    5,031.64/6,942.25 = 3,145.14/x
  3. Step 3: Cross multiply
    5,031.64x = 6,942.25 × 3,145.14
  4. Step 4: Simplify right side
    5,031.64x = 21,834,348.17
  5. Step 5: Solve for x
    x = 21,834,348.17/5,031.64
  6. Step 6: Final answer
    x = 4,339.41

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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.