Home / 4,339.78-5,989.49-2,660.89

Finding the Fourth Proportional to 4,339.78, 5,989.49 and 2,660.89

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Solution

The fourth proportional to 4,339.78, 5,989.49 and 2,660.89 is: 3,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,339.78 : 5,989.49 = 2,660.89 : x
  2. Step 2: Convert to fraction form
    4,339.78/5,989.49 = 2,660.89/x
  3. Step 3: Cross multiply
    4,339.78x = 5,989.49 × 2,660.89
  4. Step 4: Simplify right side
    4,339.78x = 15,937,374.05
  5. Step 5: Solve for x
    x = 15,937,374.05/4,339.78
  6. Step 6: Final answer
    x = 3,672.39

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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.