Home / 1,942.24-2,911.74-1,788.48

Finding the Fourth Proportional to 1,942.24, 2,911.74 and 1,788.48

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Solution

The fourth proportional to 1,942.24, 2,911.74 and 1,788.48 is: 2,681.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.24 : 2,911.74 = 1,788.48 : x
  2. Step 2: Convert to fraction form
    1,942.24/2,911.74 = 1,788.48/x
  3. Step 3: Cross multiply
    1,942.24x = 2,911.74 × 1,788.48
  4. Step 4: Simplify right side
    1,942.24x = 5,207,588.76
  5. Step 5: Solve for x
    x = 5,207,588.76/1,942.24
  6. Step 6: Final answer
    x = 2,681.23

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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.