Home / 4,980.36-7,470.51-1,861.15

Finding the Fourth Proportional to 4,980.36, 7,470.51 and 1,861.15

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Solution

The fourth proportional to 4,980.36, 7,470.51 and 1,861.15 is: 2,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.36 : 7,470.51 = 1,861.15 : x
  2. Step 2: Convert to fraction form
    4,980.36/7,470.51 = 1,861.15/x
  3. Step 3: Cross multiply
    4,980.36x = 7,470.51 × 1,861.15
  4. Step 4: Simplify right side
    4,980.36x = 13,903,702.33
  5. Step 5: Solve for x
    x = 13,903,702.33/4,980.36
  6. Step 6: Final answer
    x = 2,791.71

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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.