Home / 2,789.16-4,199.18-2,309.64

Finding the Fourth Proportional to 2,789.16, 4,199.18 and 2,309.64

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Solution

The fourth proportional to 2,789.16, 4,199.18 and 2,309.64 is: 3,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.16 : 4,199.18 = 2,309.64 : x
  2. Step 2: Convert to fraction form
    2,789.16/4,199.18 = 2,309.64/x
  3. Step 3: Cross multiply
    2,789.16x = 4,199.18 × 2,309.64
  4. Step 4: Simplify right side
    2,789.16x = 9,698,594.10
  5. Step 5: Solve for x
    x = 9,698,594.10/2,789.16
  6. Step 6: Final answer
    x = 3,477.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.