Home / 3,133.78-4,325.07-1,807.22

Finding the Fourth Proportional to 3,133.78, 4,325.07 and 1,807.22

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Solution

The fourth proportional to 3,133.78, 4,325.07 and 1,807.22 is: 2,494.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.78 : 4,325.07 = 1,807.22 : x
  2. Step 2: Convert to fraction form
    3,133.78/4,325.07 = 1,807.22/x
  3. Step 3: Cross multiply
    3,133.78x = 4,325.07 × 1,807.22
  4. Step 4: Simplify right side
    3,133.78x = 7,816,353.01
  5. Step 5: Solve for x
    x = 7,816,353.01/3,133.78
  6. Step 6: Final answer
    x = 2,494.23

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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.