Home / 1,908.53-2,633.45-1,111.98

Finding the Fourth Proportional to 1,908.53, 2,633.45 and 1,111.98

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Solution

The fourth proportional to 1,908.53, 2,633.45 and 1,111.98 is: 1,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.53 : 2,633.45 = 1,111.98 : x
  2. Step 2: Convert to fraction form
    1,908.53/2,633.45 = 1,111.98/x
  3. Step 3: Cross multiply
    1,908.53x = 2,633.45 × 1,111.98
  4. Step 4: Simplify right side
    1,908.53x = 2,928,338.17
  5. Step 5: Solve for x
    x = 2,928,338.17/1,908.53
  6. Step 6: Final answer
    x = 1,534.35

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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.