Home / 7,141.15-10,710.51-1,945.81

Finding the Fourth Proportional to 7,141.15, 10,710.51 and 1,945.81

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Solution

The fourth proportional to 7,141.15, 10,710.51 and 1,945.81 is: 2,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.15 : 10,710.51 = 1,945.81 : x
  2. Step 2: Convert to fraction form
    7,141.15/10,710.51 = 1,945.81/x
  3. Step 3: Cross multiply
    7,141.15x = 10,710.51 × 1,945.81
  4. Step 4: Simplify right side
    7,141.15x = 20,840,617.46
  5. Step 5: Solve for x
    x = 20,840,617.46/7,141.15
  6. Step 6: Final answer
    x = 2,918.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.