Home / 3,731.36-5,148.80-2,218.68

Finding the Fourth Proportional to 3,731.36, 5,148.80 and 2,218.68

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Solution

The fourth proportional to 3,731.36, 5,148.80 and 2,218.68 is: 3,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.36 : 5,148.80 = 2,218.68 : x
  2. Step 2: Convert to fraction form
    3,731.36/5,148.80 = 2,218.68/x
  3. Step 3: Cross multiply
    3,731.36x = 5,148.80 × 2,218.68
  4. Step 4: Simplify right side
    3,731.36x = 11,423,539.58
  5. Step 5: Solve for x
    x = 11,423,539.58/3,731.36
  6. Step 6: Final answer
    x = 3,061.49

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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.