Home / 1,722.51-2,377.08-936.55

Finding the Fourth Proportional to 1,722.51, 2,377.08 and 936.55

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Solution

The fourth proportional to 1,722.51, 2,377.08 and 936.55 is: 1,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.51 : 2,377.08 = 936.55 : x
  2. Step 2: Convert to fraction form
    1,722.51/2,377.08 = 936.55/x
  3. Step 3: Cross multiply
    1,722.51x = 2,377.08 × 936.55
  4. Step 4: Simplify right side
    1,722.51x = 2,226,254.27
  5. Step 5: Solve for x
    x = 2,226,254.27/1,722.51
  6. Step 6: Final answer
    x = 1,292.45

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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.