Home / 1,901.80-2,625.78-1,772.20

Finding the Fourth Proportional to 1,901.80, 2,625.78 and 1,772.20

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Solution

The fourth proportional to 1,901.80, 2,625.78 and 1,772.20 is: 2,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.80 : 2,625.78 = 1,772.20 : x
  2. Step 2: Convert to fraction form
    1,901.80/2,625.78 = 1,772.20/x
  3. Step 3: Cross multiply
    1,901.80x = 2,625.78 × 1,772.20
  4. Step 4: Simplify right side
    1,901.80x = 4,653,407.32
  5. Step 5: Solve for x
    x = 4,653,407.32/1,901.80
  6. Step 6: Final answer
    x = 2,446.84

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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.