Home / 2,480.55-3,419.58-1,890.06

Finding the Fourth Proportional to 2,480.55, 3,419.58 and 1,890.06

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Solution

The fourth proportional to 2,480.55, 3,419.58 and 1,890.06 is: 2,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.55 : 3,419.58 = 1,890.06 : x
  2. Step 2: Convert to fraction form
    2,480.55/3,419.58 = 1,890.06/x
  3. Step 3: Cross multiply
    2,480.55x = 3,419.58 × 1,890.06
  4. Step 4: Simplify right side
    2,480.55x = 6,463,211.37
  5. Step 5: Solve for x
    x = 6,463,211.37/2,480.55
  6. Step 6: Final answer
    x = 2,605.56

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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.