Home / 5,031.07-6,942.55-3,142.54

Finding the Fourth Proportional to 5,031.07, 6,942.55 and 3,142.54

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Solution

The fourth proportional to 5,031.07, 6,942.55 and 3,142.54 is: 4,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.07 : 6,942.55 = 3,142.54 : x
  2. Step 2: Convert to fraction form
    5,031.07/6,942.55 = 3,142.54/x
  3. Step 3: Cross multiply
    5,031.07x = 6,942.55 × 3,142.54
  4. Step 4: Simplify right side
    5,031.07x = 21,817,206.36
  5. Step 5: Solve for x
    x = 21,817,206.36/5,031.07
  6. Step 6: Final answer
    x = 4,336.50

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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.