Home / 4,931.80-7,379.70-3,635.80

Finding the Fourth Proportional to 4,931.80, 7,379.70 and 3,635.80

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Solution

The fourth proportional to 4,931.80, 7,379.70 and 3,635.80 is: 5,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.80 : 7,379.70 = 3,635.80 : x
  2. Step 2: Convert to fraction form
    4,931.80/7,379.70 = 3,635.80/x
  3. Step 3: Cross multiply
    4,931.80x = 7,379.70 × 3,635.80
  4. Step 4: Simplify right side
    4,931.80x = 26,831,113.26
  5. Step 5: Solve for x
    x = 26,831,113.26/4,931.80
  6. Step 6: Final answer
    x = 5,440.43

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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.