Home / 7,336.85-10,124.78-3,979.64

Finding the Fourth Proportional to 7,336.85, 10,124.78 and 3,979.64

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Solution

The fourth proportional to 7,336.85, 10,124.78 and 3,979.64 is: 5,491.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,336.85 : 10,124.78 = 3,979.64 : x
  2. Step 2: Convert to fraction form
    7,336.85/10,124.78 = 3,979.64/x
  3. Step 3: Cross multiply
    7,336.85x = 10,124.78 × 3,979.64
  4. Step 4: Simplify right side
    7,336.85x = 40,292,984.89
  5. Step 5: Solve for x
    x = 40,292,984.89/7,336.85
  6. Step 6: Final answer
    x = 5,491.87

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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.