Home / 7,480.01-10,321.99-4,122.81

Finding the Fourth Proportional to 7,480.01, 10,321.99 and 4,122.81

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Solution

The fourth proportional to 7,480.01, 10,321.99 and 4,122.81 is: 5,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.01 : 10,321.99 = 4,122.81 : x
  2. Step 2: Convert to fraction form
    7,480.01/10,321.99 = 4,122.81/x
  3. Step 3: Cross multiply
    7,480.01x = 10,321.99 × 4,122.81
  4. Step 4: Simplify right side
    7,480.01x = 42,555,582.98
  5. Step 5: Solve for x
    x = 42,555,582.98/7,480.01
  6. Step 6: Final answer
    x = 5,689.25

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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.