Home / 2,655.70-3,989.67-1,671.58

Finding the Fourth Proportional to 2,655.70, 3,989.67 and 1,671.58

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Solution

The fourth proportional to 2,655.70, 3,989.67 and 1,671.58 is: 2,511.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.70 : 3,989.67 = 1,671.58 : x
  2. Step 2: Convert to fraction form
    2,655.70/3,989.67 = 1,671.58/x
  3. Step 3: Cross multiply
    2,655.70x = 3,989.67 × 1,671.58
  4. Step 4: Simplify right side
    2,655.70x = 6,669,052.58
  5. Step 5: Solve for x
    x = 6,669,052.58/2,655.70
  6. Step 6: Final answer
    x = 2,511.22

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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.