Home / 2,163.15-2,986.88-1,502.19

Finding the Fourth Proportional to 2,163.15, 2,986.88 and 1,502.19

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Solution

The fourth proportional to 2,163.15, 2,986.88 and 1,502.19 is: 2,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.15 : 2,986.88 = 1,502.19 : x
  2. Step 2: Convert to fraction form
    2,163.15/2,986.88 = 1,502.19/x
  3. Step 3: Cross multiply
    2,163.15x = 2,986.88 × 1,502.19
  4. Step 4: Simplify right side
    2,163.15x = 4,486,853.76
  5. Step 5: Solve for x
    x = 4,486,853.76/2,163.15
  6. Step 6: Final answer
    x = 2,074.22

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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.