Home / 7,339.86-10,128.99-3,982.65

Finding the Fourth Proportional to 7,339.86, 10,128.99 and 3,982.65

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Solution

The fourth proportional to 7,339.86, 10,128.99 and 3,982.65 is: 5,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.86 : 10,128.99 = 3,982.65 : x
  2. Step 2: Convert to fraction form
    7,339.86/10,128.99 = 3,982.65/x
  3. Step 3: Cross multiply
    7,339.86x = 10,128.99 × 3,982.65
  4. Step 4: Simplify right side
    7,339.86x = 40,340,222.02
  5. Step 5: Solve for x
    x = 40,340,222.02/7,339.86
  6. Step 6: Final answer
    x = 5,496.05

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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.