Home / 3,389.64-5,079.42-2,777.64

Finding the Fourth Proportional to 3,389.64, 5,079.42 and 2,777.64

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Solution

The fourth proportional to 3,389.64, 5,079.42 and 2,777.64 is: 4,162.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.64 : 5,079.42 = 2,777.64 : x
  2. Step 2: Convert to fraction form
    3,389.64/5,079.42 = 2,777.64/x
  3. Step 3: Cross multiply
    3,389.64x = 5,079.42 × 2,777.64
  4. Step 4: Simplify right side
    3,389.64x = 14,108,800.17
  5. Step 5: Solve for x
    x = 14,108,800.17/3,389.64
  6. Step 6: Final answer
    x = 4,162.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.