Home / 2,480.56-3,419.52-1,890.07

Finding the Fourth Proportional to 2,480.56, 3,419.52 and 1,890.07

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Solution

The fourth proportional to 2,480.56, 3,419.52 and 1,890.07 is: 2,605.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.56 : 3,419.52 = 1,890.07 : x
  2. Step 2: Convert to fraction form
    2,480.56/3,419.52 = 1,890.07/x
  3. Step 3: Cross multiply
    2,480.56x = 3,419.52 × 1,890.07
  4. Step 4: Simplify right side
    2,480.56x = 6,463,132.17
  5. Step 5: Solve for x
    x = 6,463,132.17/2,480.56
  6. Step 6: Final answer
    x = 2,605.51

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1.5x scale

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.