Home / 1,722.22-2,376.72-936.32

Finding the Fourth Proportional to 1,722.22, 2,376.72 and 936.32

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Solution

The fourth proportional to 1,722.22, 2,376.72 and 936.32 is: 1,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.22 : 2,376.72 = 936.32 : x
  2. Step 2: Convert to fraction form
    1,722.22/2,376.72 = 936.32/x
  3. Step 3: Cross multiply
    1,722.22x = 2,376.72 × 936.32
  4. Step 4: Simplify right side
    1,722.22x = 2,225,370.47
  5. Step 5: Solve for x
    x = 2,225,370.47/1,722.22
  6. Step 6: Final answer
    x = 1,292.16

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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.