Home / 1,722.32-2,375.74-1,501.80

Finding the Fourth Proportional to 1,722.32, 2,375.74 and 1,501.80

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Solution

The fourth proportional to 1,722.32, 2,375.74 and 1,501.80 is: 2,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.32 : 2,375.74 = 1,501.80 : x
  2. Step 2: Convert to fraction form
    1,722.32/2,375.74 = 1,501.80/x
  3. Step 3: Cross multiply
    1,722.32x = 2,375.74 × 1,501.80
  4. Step 4: Simplify right side
    1,722.32x = 3,567,878.82
  5. Step 5: Solve for x
    x = 3,567,878.82/1,722.32
  6. Step 6: Final answer
    x = 2,071.55

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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.