Home / 2,888.60-3,986.15-1,629.79

Finding the Fourth Proportional to 2,888.60, 3,986.15 and 1,629.79

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Solution

The fourth proportional to 2,888.60, 3,986.15 and 1,629.79 is: 2,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.60 : 3,986.15 = 1,629.79 : x
  2. Step 2: Convert to fraction form
    2,888.60/3,986.15 = 1,629.79/x
  3. Step 3: Cross multiply
    2,888.60x = 3,986.15 × 1,629.79
  4. Step 4: Simplify right side
    2,888.60x = 6,496,569.29
  5. Step 5: Solve for x
    x = 6,496,569.29/2,888.60
  6. Step 6: Final answer
    x = 2,249.04

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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.