Home / 1,749.68-2,634.94-1,578.32

Finding the Fourth Proportional to 1,749.68, 2,634.94 and 1,578.32

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Solution

The fourth proportional to 1,749.68, 2,634.94 and 1,578.32 is: 2,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.68 : 2,634.94 = 1,578.32 : x
  2. Step 2: Convert to fraction form
    1,749.68/2,634.94 = 1,578.32/x
  3. Step 3: Cross multiply
    1,749.68x = 2,634.94 × 1,578.32
  4. Step 4: Simplify right side
    1,749.68x = 4,158,778.50
  5. Step 5: Solve for x
    x = 4,158,778.50/1,749.68
  6. Step 6: Final answer
    x = 2,376.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.