Home / 2,163.04-2,990.82-1,886.25

Finding the Fourth Proportional to 2,163.04, 2,990.82 and 1,886.25

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Solution

The fourth proportional to 2,163.04, 2,990.82 and 1,886.25 is: 2,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.04 : 2,990.82 = 1,886.25 : x
  2. Step 2: Convert to fraction form
    2,163.04/2,990.82 = 1,886.25/x
  3. Step 3: Cross multiply
    2,163.04x = 2,990.82 × 1,886.25
  4. Step 4: Simplify right side
    2,163.04x = 5,641,452.51
  5. Step 5: Solve for x
    x = 5,641,452.51/2,163.04
  6. Step 6: Final answer
    x = 2,608.12

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1.5x scale

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.