Home / 2,381.22-3,285.98-1,319.08

Finding the Fourth Proportional to 2,381.22, 3,285.98 and 1,319.08

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Solution

The fourth proportional to 2,381.22, 3,285.98 and 1,319.08 is: 1,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.22 : 3,285.98 = 1,319.08 : x
  2. Step 2: Convert to fraction form
    2,381.22/3,285.98 = 1,319.08/x
  3. Step 3: Cross multiply
    2,381.22x = 3,285.98 × 1,319.08
  4. Step 4: Simplify right side
    2,381.22x = 4,334,470.50
  5. Step 5: Solve for x
    x = 4,334,470.50/2,381.22
  6. Step 6: Final answer
    x = 1,820.27

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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.