Home / 4,380.60-6,585.30-4,121.40

Finding the Fourth Proportional to 4,380.60, 6,585.30 and 4,121.40

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Solution

The fourth proportional to 4,380.60, 6,585.30 and 4,121.40 is: 6,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.60 : 6,585.30 = 4,121.40 : x
  2. Step 2: Convert to fraction form
    4,380.60/6,585.30 = 4,121.40/x
  3. Step 3: Cross multiply
    4,380.60x = 6,585.30 × 4,121.40
  4. Step 4: Simplify right side
    4,380.60x = 27,140,655.42
  5. Step 5: Solve for x
    x = 27,140,655.42/4,380.60
  6. Step 6: Final answer
    x = 6,195.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.