Home / 1,623.36-2,240.64-960.96

Finding the Fourth Proportional to 1,623.36, 2,240.64 and 960.96

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Solution

The fourth proportional to 1,623.36, 2,240.64 and 960.96 is: 1,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.36 : 2,240.64 = 960.96 : x
  2. Step 2: Convert to fraction form
    1,623.36/2,240.64 = 960.96/x
  3. Step 3: Cross multiply
    1,623.36x = 2,240.64 × 960.96
  4. Step 4: Simplify right side
    1,623.36x = 2,153,165.41
  5. Step 5: Solve for x
    x = 2,153,165.41/1,623.36
  6. Step 6: Final answer
    x = 1,326.36

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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.