Home / 4,555.57-6,289.56-3,138.80

Finding the Fourth Proportional to 4,555.57, 6,289.56 and 3,138.80

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Solution

The fourth proportional to 4,555.57, 6,289.56 and 3,138.80 is: 4,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,555.57 : 6,289.56 = 3,138.80 : x
  2. Step 2: Convert to fraction form
    4,555.57/6,289.56 = 3,138.80/x
  3. Step 3: Cross multiply
    4,555.57x = 6,289.56 × 3,138.80
  4. Step 4: Simplify right side
    4,555.57x = 19,741,679.27
  5. Step 5: Solve for x
    x = 19,741,679.27/4,555.57
  6. Step 6: Final answer
    x = 4,333.53

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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.