Home / 1,911.59-2,868.25-1,133.13

Finding the Fourth Proportional to 1,911.59, 2,868.25 and 1,133.13

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Solution

The fourth proportional to 1,911.59, 2,868.25 and 1,133.13 is: 1,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.59 : 2,868.25 = 1,133.13 : x
  2. Step 2: Convert to fraction form
    1,911.59/2,868.25 = 1,133.13/x
  3. Step 3: Cross multiply
    1,911.59x = 2,868.25 × 1,133.13
  4. Step 4: Simplify right side
    1,911.59x = 3,250,100.12
  5. Step 5: Solve for x
    x = 3,250,100.12/1,911.59
  6. Step 6: Final answer
    x = 1,700.21

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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.