Home / 5,710.95-7,887.30-3,923.13

Finding the Fourth Proportional to 5,710.95, 7,887.30 and 3,923.13

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Solution

The fourth proportional to 5,710.95, 7,887.30 and 3,923.13 is: 5,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.95 : 7,887.30 = 3,923.13 : x
  2. Step 2: Convert to fraction form
    5,710.95/7,887.30 = 3,923.13/x
  3. Step 3: Cross multiply
    5,710.95x = 7,887.30 × 3,923.13
  4. Step 4: Simplify right side
    5,710.95x = 30,942,918.11
  5. Step 5: Solve for x
    x = 30,942,918.11/5,710.95
  6. Step 6: Final answer
    x = 5,418.17

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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.