Home / 5,087.79-7,629.90-2,419.07

Finding the Fourth Proportional to 5,087.79, 7,629.90 and 2,419.07

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Solution

The fourth proportional to 5,087.79, 7,629.90 and 2,419.07 is: 3,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.79 : 7,629.90 = 2,419.07 : x
  2. Step 2: Convert to fraction form
    5,087.79/7,629.90 = 2,419.07/x
  3. Step 3: Cross multiply
    5,087.79x = 7,629.90 × 2,419.07
  4. Step 4: Simplify right side
    5,087.79x = 18,457,224.04
  5. Step 5: Solve for x
    x = 18,457,224.04/5,087.79
  6. Step 6: Final answer
    x = 3,627.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.