Home / 1,283.36-1,922.10-1,135.58

Finding the Fourth Proportional to 1,283.36, 1,922.10 and 1,135.58

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Solution

The fourth proportional to 1,283.36, 1,922.10 and 1,135.58 is: 1,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.36 : 1,922.10 = 1,135.58 : x
  2. Step 2: Convert to fraction form
    1,283.36/1,922.10 = 1,135.58/x
  3. Step 3: Cross multiply
    1,283.36x = 1,922.10 × 1,135.58
  4. Step 4: Simplify right side
    1,283.36x = 2,182,698.32
  5. Step 5: Solve for x
    x = 2,182,698.32/1,283.36
  6. Step 6: Final answer
    x = 1,700.77

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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.