Home / 2,918.95-4,380.18-1,163.65

Finding the Fourth Proportional to 2,918.95, 4,380.18 and 1,163.65

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Solution

The fourth proportional to 2,918.95, 4,380.18 and 1,163.65 is: 1,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.95 : 4,380.18 = 1,163.65 : x
  2. Step 2: Convert to fraction form
    2,918.95/4,380.18 = 1,163.65/x
  3. Step 3: Cross multiply
    2,918.95x = 4,380.18 × 1,163.65
  4. Step 4: Simplify right side
    2,918.95x = 5,096,996.46
  5. Step 5: Solve for x
    x = 5,096,996.46/2,918.95
  6. Step 6: Final answer
    x = 1,746.17

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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.