Home / 2,109.65-2,912.36-1,364.04

Finding the Fourth Proportional to 2,109.65, 2,912.36 and 1,364.04

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Solution

The fourth proportional to 2,109.65, 2,912.36 and 1,364.04 is: 1,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.65 : 2,912.36 = 1,364.04 : x
  2. Step 2: Convert to fraction form
    2,109.65/2,912.36 = 1,364.04/x
  3. Step 3: Cross multiply
    2,109.65x = 2,912.36 × 1,364.04
  4. Step 4: Simplify right side
    2,109.65x = 3,972,568.71
  5. Step 5: Solve for x
    x = 3,972,568.71/2,109.65
  6. Step 6: Final answer
    x = 1,883.05

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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.