Home / 3,142.36-4,336.80-2,009.08

Finding the Fourth Proportional to 3,142.36, 4,336.80 and 2,009.08

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Solution

The fourth proportional to 3,142.36, 4,336.80 and 2,009.08 is: 2,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.36 : 4,336.80 = 2,009.08 : x
  2. Step 2: Convert to fraction form
    3,142.36/4,336.80 = 2,009.08/x
  3. Step 3: Cross multiply
    3,142.36x = 4,336.80 × 2,009.08
  4. Step 4: Simplify right side
    3,142.36x = 8,712,978.14
  5. Step 5: Solve for x
    x = 8,712,978.14/3,142.36
  6. Step 6: Final answer
    x = 2,772.75

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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.