Home / 3,710.93-5,121.54-2,139.03

Finding the Fourth Proportional to 3,710.93, 5,121.54 and 2,139.03

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Solution

The fourth proportional to 3,710.93, 5,121.54 and 2,139.03 is: 2,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.93 : 5,121.54 = 2,139.03 : x
  2. Step 2: Convert to fraction form
    3,710.93/5,121.54 = 2,139.03/x
  3. Step 3: Cross multiply
    3,710.93x = 5,121.54 × 2,139.03
  4. Step 4: Simplify right side
    3,710.93x = 10,955,127.71
  5. Step 5: Solve for x
    x = 10,955,127.71/3,710.93
  6. Step 6: Final answer
    x = 2,952.13

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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.