Home / 4,621.70-6,930.73-1,989.41

Finding the Fourth Proportional to 4,621.70, 6,930.73 and 1,989.41

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Solution

The fourth proportional to 4,621.70, 6,930.73 and 1,989.41 is: 2,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621.70 : 6,930.73 = 1,989.41 : x
  2. Step 2: Convert to fraction form
    4,621.70/6,930.73 = 1,989.41/x
  3. Step 3: Cross multiply
    4,621.70x = 6,930.73 × 1,989.41
  4. Step 4: Simplify right side
    4,621.70x = 13,788,031.40
  5. Step 5: Solve for x
    x = 13,788,031.40/4,621.70
  6. Step 6: Final answer
    x = 2,983.32

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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.