Home / 3,128.19-4,317.48-2,010.52

Finding the Fourth Proportional to 3,128.19, 4,317.48 and 2,010.52

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Solution

The fourth proportional to 3,128.19, 4,317.48 and 2,010.52 is: 2,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.19 : 4,317.48 = 2,010.52 : x
  2. Step 2: Convert to fraction form
    3,128.19/4,317.48 = 2,010.52/x
  3. Step 3: Cross multiply
    3,128.19x = 4,317.48 × 2,010.52
  4. Step 4: Simplify right side
    3,128.19x = 8,680,379.89
  5. Step 5: Solve for x
    x = 8,680,379.89/3,128.19
  6. Step 6: Final answer
    x = 2,774.89

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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.