Home / 1,734.20-2,392.78-1,175.80

Finding the Fourth Proportional to 1,734.20, 2,392.78 and 1,175.80

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Solution

The fourth proportional to 1,734.20, 2,392.78 and 1,175.80 is: 1,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734.20 : 2,392.78 = 1,175.80 : x
  2. Step 2: Convert to fraction form
    1,734.20/2,392.78 = 1,175.80/x
  3. Step 3: Cross multiply
    1,734.20x = 2,392.78 × 1,175.80
  4. Step 4: Simplify right side
    1,734.20x = 2,813,430.72
  5. Step 5: Solve for x
    x = 2,813,430.72/1,734.20
  6. Step 6: Final answer
    x = 1,622.32

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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.