Home / 1,897.20-2,619.84-1,505.04

Finding the Fourth Proportional to 1,897.20, 2,619.84 and 1,505.04

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Solution

The fourth proportional to 1,897.20, 2,619.84 and 1,505.04 is: 2,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.20 : 2,619.84 = 1,505.04 : x
  2. Step 2: Convert to fraction form
    1,897.20/2,619.84 = 1,505.04/x
  3. Step 3: Cross multiply
    1,897.20x = 2,619.84 × 1,505.04
  4. Step 4: Simplify right side
    1,897.20x = 3,942,963.99
  5. Step 5: Solve for x
    x = 3,942,963.99/1,897.20
  6. Step 6: Final answer
    x = 2,078.31

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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.