Home / 2,486.26-3,430.98-1,351.90

Finding the Fourth Proportional to 2,486.26, 3,430.98 and 1,351.90

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Solution

The fourth proportional to 2,486.26, 3,430.98 and 1,351.90 is: 1,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.26 : 3,430.98 = 1,351.90 : x
  2. Step 2: Convert to fraction form
    2,486.26/3,430.98 = 1,351.90/x
  3. Step 3: Cross multiply
    2,486.26x = 3,430.98 × 1,351.90
  4. Step 4: Simplify right side
    2,486.26x = 4,638,341.86
  5. Step 5: Solve for x
    x = 4,638,341.86/2,486.26
  6. Step 6: Final answer
    x = 1,865.59

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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.