Home / 1,721.36-2,375.16-1,256.24

Finding the Fourth Proportional to 1,721.36, 2,375.16 and 1,256.24

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Solution

The fourth proportional to 1,721.36, 2,375.16 and 1,256.24 is: 1,733.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.36 : 2,375.16 = 1,256.24 : x
  2. Step 2: Convert to fraction form
    1,721.36/2,375.16 = 1,256.24/x
  3. Step 3: Cross multiply
    1,721.36x = 2,375.16 × 1,256.24
  4. Step 4: Simplify right side
    1,721.36x = 2,983,771.00
  5. Step 5: Solve for x
    x = 2,983,771.00/1,721.36
  6. Step 6: Final answer
    x = 1,733.38

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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.