Home / 1,887.14-2,829.75-1,107.32

Finding the Fourth Proportional to 1,887.14, 2,829.75 and 1,107.32

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Solution

The fourth proportional to 1,887.14, 2,829.75 and 1,107.32 is: 1,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.14 : 2,829.75 = 1,107.32 : x
  2. Step 2: Convert to fraction form
    1,887.14/2,829.75 = 1,107.32/x
  3. Step 3: Cross multiply
    1,887.14x = 2,829.75 × 1,107.32
  4. Step 4: Simplify right side
    1,887.14x = 3,133,438.77
  5. Step 5: Solve for x
    x = 3,133,438.77/1,887.14
  6. Step 6: Final answer
    x = 1,660.42

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1.5x scale

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.