Home / 2,419.53-3,337.36-1,921.38

Finding the Fourth Proportional to 2,419.53, 3,337.36 and 1,921.38

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Solution

The fourth proportional to 2,419.53, 3,337.36 and 1,921.38 is: 2,650.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.53 : 3,337.36 = 1,921.38 : x
  2. Step 2: Convert to fraction form
    2,419.53/3,337.36 = 1,921.38/x
  3. Step 3: Cross multiply
    2,419.53x = 3,337.36 × 1,921.38
  4. Step 4: Simplify right side
    2,419.53x = 6,412,336.76
  5. Step 5: Solve for x
    x = 6,412,336.76/2,419.53
  6. Step 6: Final answer
    x = 2,650.24

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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.