Home / 1,722.01-2,376.39-936.05

Finding the Fourth Proportional to 1,722.01, 2,376.39 and 936.05

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Solution

The fourth proportional to 1,722.01, 2,376.39 and 936.05 is: 1,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.01 : 2,376.39 = 936.05 : x
  2. Step 2: Convert to fraction form
    1,722.01/2,376.39 = 936.05/x
  3. Step 3: Cross multiply
    1,722.01x = 2,376.39 × 936.05
  4. Step 4: Simplify right side
    1,722.01x = 2,224,432.28
  5. Step 5: Solve for x
    x = 2,224,432.28/1,722.01
  6. Step 6: Final answer
    x = 1,291.77

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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.