Home / 2,135.23-2,945.78-1,577.02

Finding the Fourth Proportional to 2,135.23, 2,945.78 and 1,577.02

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Solution

The fourth proportional to 2,135.23, 2,945.78 and 1,577.02 is: 2,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.23 : 2,945.78 = 1,577.02 : x
  2. Step 2: Convert to fraction form
    2,135.23/2,945.78 = 1,577.02/x
  3. Step 3: Cross multiply
    2,135.23x = 2,945.78 × 1,577.02
  4. Step 4: Simplify right side
    2,135.23x = 4,645,531.36
  5. Step 5: Solve for x
    x = 4,645,531.36/2,135.23
  6. Step 6: Final answer
    x = 2,175.66

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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.