Home / 1,404.40-2,102.55-1,324.30

Finding the Fourth Proportional to 1,404.40, 2,102.55 and 1,324.30

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Solution

The fourth proportional to 1,404.40, 2,102.55 and 1,324.30 is: 1,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404.40 : 2,102.55 = 1,324.30 : x
  2. Step 2: Convert to fraction form
    1,404.40/2,102.55 = 1,324.30/x
  3. Step 3: Cross multiply
    1,404.40x = 2,102.55 × 1,324.30
  4. Step 4: Simplify right side
    1,404.40x = 2,784,406.97
  5. Step 5: Solve for x
    x = 2,784,406.97/1,404.40
  6. Step 6: Final answer
    x = 1,982.63

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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.