Home / 2,816.51-4,220.42-1,353.65

Finding the Fourth Proportional to 2,816.51, 4,220.42 and 1,353.65

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Solution

The fourth proportional to 2,816.51, 4,220.42 and 1,353.65 is: 2,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.51 : 4,220.42 = 1,353.65 : x
  2. Step 2: Convert to fraction form
    2,816.51/4,220.42 = 1,353.65/x
  3. Step 3: Cross multiply
    2,816.51x = 4,220.42 × 1,353.65
  4. Step 4: Simplify right side
    2,816.51x = 5,712,943.66
  5. Step 5: Solve for x
    x = 5,712,943.66/2,816.51
  6. Step 6: Final answer
    x = 2,028.38

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1.5x scale

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.