Home / 3,724.51-5,139.75-2,045.91

Finding the Fourth Proportional to 3,724.51, 5,139.75 and 2,045.91

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Solution

The fourth proportional to 3,724.51, 5,139.75 and 2,045.91 is: 2,823.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.51 : 5,139.75 = 2,045.91 : x
  2. Step 2: Convert to fraction form
    3,724.51/5,139.75 = 2,045.91/x
  3. Step 3: Cross multiply
    3,724.51x = 5,139.75 × 2,045.91
  4. Step 4: Simplify right side
    3,724.51x = 10,515,463.96
  5. Step 5: Solve for x
    x = 10,515,463.96/3,724.51
  6. Step 6: Final answer
    x = 2,823.32

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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.