Home / 4,509.48-6,765.60-2,139.39

Finding the Fourth Proportional to 4,509.48, 6,765.60 and 2,139.39

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Solution

The fourth proportional to 4,509.48, 6,765.60 and 2,139.39 is: 3,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.48 : 6,765.60 = 2,139.39 : x
  2. Step 2: Convert to fraction form
    4,509.48/6,765.60 = 2,139.39/x
  3. Step 3: Cross multiply
    4,509.48x = 6,765.60 × 2,139.39
  4. Step 4: Simplify right side
    4,509.48x = 14,474,256.98
  5. Step 5: Solve for x
    x = 14,474,256.98/4,509.48
  6. Step 6: Final answer
    x = 3,209.74

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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.