Home / 2,195.69-3,030.02-1,200.95

Finding the Fourth Proportional to 2,195.69, 3,030.02 and 1,200.95

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Solution

The fourth proportional to 2,195.69, 3,030.02 and 1,200.95 is: 1,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.69 : 3,030.02 = 1,200.95 : x
  2. Step 2: Convert to fraction form
    2,195.69/3,030.02 = 1,200.95/x
  3. Step 3: Cross multiply
    2,195.69x = 3,030.02 × 1,200.95
  4. Step 4: Simplify right side
    2,195.69x = 3,638,907.44
  5. Step 5: Solve for x
    x = 3,638,907.44/2,195.69
  6. Step 6: Final answer
    x = 1,657.29

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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.