Home / 3,653.31-5,042.48-2,720.19

Finding the Fourth Proportional to 3,653.31, 5,042.48 and 2,720.19

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Solution

The fourth proportional to 3,653.31, 5,042.48 and 2,720.19 is: 3,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.31 : 5,042.48 = 2,720.19 : x
  2. Step 2: Convert to fraction form
    3,653.31/5,042.48 = 2,720.19/x
  3. Step 3: Cross multiply
    3,653.31x = 5,042.48 × 2,720.19
  4. Step 4: Simplify right side
    3,653.31x = 13,716,490.07
  5. Step 5: Solve for x
    x = 13,716,490.07/3,653.31
  6. Step 6: Final answer
    x = 3,754.54

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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.