Home / 2,419.88-3,340.06-1,489.16

Finding the Fourth Proportional to 2,419.88, 3,340.06 and 1,489.16

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Solution

The fourth proportional to 2,419.88, 3,340.06 and 1,489.16 is: 2,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.88 : 3,340.06 = 1,489.16 : x
  2. Step 2: Convert to fraction form
    2,419.88/3,340.06 = 1,489.16/x
  3. Step 3: Cross multiply
    2,419.88x = 3,340.06 × 1,489.16
  4. Step 4: Simplify right side
    2,419.88x = 4,973,883.75
  5. Step 5: Solve for x
    x = 4,973,883.75/2,419.88
  6. Step 6: Final answer
    x = 2,055.43

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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.