Home / 4,880.29-7,318.38-2,105.56

Finding the Fourth Proportional to 4,880.29, 7,318.38 and 2,105.56

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Solution

The fourth proportional to 4,880.29, 7,318.38 and 2,105.56 is: 3,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.29 : 7,318.38 = 2,105.56 : x
  2. Step 2: Convert to fraction form
    4,880.29/7,318.38 = 2,105.56/x
  3. Step 3: Cross multiply
    4,880.29x = 7,318.38 × 2,105.56
  4. Step 4: Simplify right side
    4,880.29x = 15,409,288.19
  5. Step 5: Solve for x
    x = 15,409,288.19/4,880.29
  6. Step 6: Final answer
    x = 3,157.45

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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.