Home / 2,909.58-4,016.16-2,163.30

Finding the Fourth Proportional to 2,909.58, 4,016.16 and 2,163.30

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Solution

The fourth proportional to 2,909.58, 4,016.16 and 2,163.30 is: 2,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.58 : 4,016.16 = 2,163.30 : x
  2. Step 2: Convert to fraction form
    2,909.58/4,016.16 = 2,163.30/x
  3. Step 3: Cross multiply
    2,909.58x = 4,016.16 × 2,163.30
  4. Step 4: Simplify right side
    2,909.58x = 8,688,158.93
  5. Step 5: Solve for x
    x = 8,688,158.93/2,909.58
  6. Step 6: Final answer
    x = 2,986.05

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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.