Home / 6,688.20-10,022.70-4,919.40

Finding the Fourth Proportional to 6,688.20, 10,022.70 and 4,919.40

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Solution

The fourth proportional to 6,688.20, 10,022.70 and 4,919.40 is: 7,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.20 : 10,022.70 = 4,919.40 : x
  2. Step 2: Convert to fraction form
    6,688.20/10,022.70 = 4,919.40/x
  3. Step 3: Cross multiply
    6,688.20x = 10,022.70 × 4,919.40
  4. Step 4: Simplify right side
    6,688.20x = 49,305,670.38
  5. Step 5: Solve for x
    x = 49,305,670.38/6,688.20
  6. Step 6: Final answer
    x = 7,372.04

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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.