Home / 3,721.10-5,133.44-2,148.08

Finding the Fourth Proportional to 3,721.10, 5,133.44 and 2,148.08

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Solution

The fourth proportional to 3,721.10, 5,133.44 and 2,148.08 is: 2,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.10 : 5,133.44 = 2,148.08 : x
  2. Step 2: Convert to fraction form
    3,721.10/5,133.44 = 2,148.08/x
  3. Step 3: Cross multiply
    3,721.10x = 5,133.44 × 2,148.08
  4. Step 4: Simplify right side
    3,721.10x = 11,027,019.50
  5. Step 5: Solve for x
    x = 11,027,019.50/3,721.10
  6. Step 6: Final answer
    x = 2,963.38

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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.