Home / 3,807.24-5,253.72-2,128.56

Finding the Fourth Proportional to 3,807.24, 5,253.72 and 2,128.56

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Solution

The fourth proportional to 3,807.24, 5,253.72 and 2,128.56 is: 2,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.24 : 5,253.72 = 2,128.56 : x
  2. Step 2: Convert to fraction form
    3,807.24/5,253.72 = 2,128.56/x
  3. Step 3: Cross multiply
    3,807.24x = 5,253.72 × 2,128.56
  4. Step 4: Simplify right side
    3,807.24x = 11,182,858.24
  5. Step 5: Solve for x
    x = 11,182,858.24/3,807.24
  6. Step 6: Final answer
    x = 2,937.26

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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.