Home / 6,079.99-8,389.20-3,720.46

Finding the Fourth Proportional to 6,079.99, 8,389.20 and 3,720.46

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Solution

The fourth proportional to 6,079.99, 8,389.20 and 3,720.46 is: 5,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,079.99 : 8,389.20 = 3,720.46 : x
  2. Step 2: Convert to fraction form
    6,079.99/8,389.20 = 3,720.46/x
  3. Step 3: Cross multiply
    6,079.99x = 8,389.20 × 3,720.46
  4. Step 4: Simplify right side
    6,079.99x = 31,211,683.03
  5. Step 5: Solve for x
    x = 31,211,683.03/6,079.99
  6. Step 6: Final answer
    x = 5,133.51

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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.