Home / 6,114.80-8,438.18-3,320.30

Finding the Fourth Proportional to 6,114.80, 8,438.18 and 3,320.30

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Solution

The fourth proportional to 6,114.80, 8,438.18 and 3,320.30 is: 4,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,114.80 : 8,438.18 = 3,320.30 : x
  2. Step 2: Convert to fraction form
    6,114.80/8,438.18 = 3,320.30/x
  3. Step 3: Cross multiply
    6,114.80x = 8,438.18 × 3,320.30
  4. Step 4: Simplify right side
    6,114.80x = 28,017,289.05
  5. Step 5: Solve for x
    x = 28,017,289.05/6,114.80
  6. Step 6: Final answer
    x = 4,581.88

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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.