Home / 1,790.80-2,471.18-1,201.24

Finding the Fourth Proportional to 1,790.80, 2,471.18 and 1,201.24

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Solution

The fourth proportional to 1,790.80, 2,471.18 and 1,201.24 is: 1,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.80 : 2,471.18 = 1,201.24 : x
  2. Step 2: Convert to fraction form
    1,790.80/2,471.18 = 1,201.24/x
  3. Step 3: Cross multiply
    1,790.80x = 2,471.18 × 1,201.24
  4. Step 4: Simplify right side
    1,790.80x = 2,968,480.26
  5. Step 5: Solve for x
    x = 2,968,480.26/1,790.80
  6. Step 6: Final answer
    x = 1,657.63

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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.