Home / 3,731.46-5,148.81-2,159.25

Finding the Fourth Proportional to 3,731.46, 5,148.81 and 2,159.25

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Solution

The fourth proportional to 3,731.46, 5,148.81 and 2,159.25 is: 2,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.46 : 5,148.81 = 2,159.25 : x
  2. Step 2: Convert to fraction form
    3,731.46/5,148.81 = 2,159.25/x
  3. Step 3: Cross multiply
    3,731.46x = 5,148.81 × 2,159.25
  4. Step 4: Simplify right side
    3,731.46x = 11,117,567.99
  5. Step 5: Solve for x
    x = 11,117,567.99/3,731.46
  6. Step 6: Final answer
    x = 2,979.42

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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.