Home / 4,213.20-6,320.55-1,439.23

Finding the Fourth Proportional to 4,213.20, 6,320.55 and 1,439.23

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Solution

The fourth proportional to 4,213.20, 6,320.55 and 1,439.23 is: 2,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.20 : 6,320.55 = 1,439.23 : x
  2. Step 2: Convert to fraction form
    4,213.20/6,320.55 = 1,439.23/x
  3. Step 3: Cross multiply
    4,213.20x = 6,320.55 × 1,439.23
  4. Step 4: Simplify right side
    4,213.20x = 9,096,686.38
  5. Step 5: Solve for x
    x = 9,096,686.38/4,213.20
  6. Step 6: Final answer
    x = 2,159.09

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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.