Home / 1,908.10-2,865.80-1,583.52

Finding the Fourth Proportional to 1,908.10, 2,865.80 and 1,583.52

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Solution

The fourth proportional to 1,908.10, 2,865.80 and 1,583.52 is: 2,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.10 : 2,865.80 = 1,583.52 : x
  2. Step 2: Convert to fraction form
    1,908.10/2,865.80 = 1,583.52/x
  3. Step 3: Cross multiply
    1,908.10x = 2,865.80 × 1,583.52
  4. Step 4: Simplify right side
    1,908.10x = 4,538,051.62
  5. Step 5: Solve for x
    x = 4,538,051.62/1,908.10
  6. Step 6: Final answer
    x = 2,378.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.