Home / 2,816.86-4,222.75-1,335.17

Finding the Fourth Proportional to 2,816.86, 4,222.75 and 1,335.17

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Solution

The fourth proportional to 2,816.86, 4,222.75 and 1,335.17 is: 2,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.86 : 4,222.75 = 1,335.17 : x
  2. Step 2: Convert to fraction form
    2,816.86/4,222.75 = 1,335.17/x
  3. Step 3: Cross multiply
    2,816.86x = 4,222.75 × 1,335.17
  4. Step 4: Simplify right side
    2,816.86x = 5,638,075.09
  5. Step 5: Solve for x
    x = 5,638,075.09/2,816.86
  6. Step 6: Final answer
    x = 2,001.55

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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.