Home / 2,381.55-3,285.97-1,319.19

Finding the Fourth Proportional to 2,381.55, 3,285.97 and 1,319.19

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Solution

The fourth proportional to 2,381.55, 3,285.97 and 1,319.19 is: 1,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.55 : 3,285.97 = 1,319.19 : x
  2. Step 2: Convert to fraction form
    2,381.55/3,285.97 = 1,319.19/x
  3. Step 3: Cross multiply
    2,381.55x = 3,285.97 × 1,319.19
  4. Step 4: Simplify right side
    2,381.55x = 4,334,803.14
  5. Step 5: Solve for x
    x = 4,334,803.14/2,381.55
  6. Step 6: Final answer
    x = 1,820.16

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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.