Home / 4,478.59-6,180.69-2,489.19

Finding the Fourth Proportional to 4,478.59, 6,180.69 and 2,489.19

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Solution

The fourth proportional to 4,478.59, 6,180.69 and 2,489.19 is: 3,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.59 : 6,180.69 = 2,489.19 : x
  2. Step 2: Convert to fraction form
    4,478.59/6,180.69 = 2,489.19/x
  3. Step 3: Cross multiply
    4,478.59x = 6,180.69 × 2,489.19
  4. Step 4: Simplify right side
    4,478.59x = 15,384,911.74
  5. Step 5: Solve for x
    x = 15,384,911.74/4,478.59
  6. Step 6: Final answer
    x = 3,435.21

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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.