Home / 3,705.21-5,557.23-1,107.54

Finding the Fourth Proportional to 3,705.21, 5,557.23 and 1,107.54

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Solution

The fourth proportional to 3,705.21, 5,557.23 and 1,107.54 is: 1,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.21 : 5,557.23 = 1,107.54 : x
  2. Step 2: Convert to fraction form
    3,705.21/5,557.23 = 1,107.54/x
  3. Step 3: Cross multiply
    3,705.21x = 5,557.23 × 1,107.54
  4. Step 4: Simplify right side
    3,705.21x = 6,154,854.51
  5. Step 5: Solve for x
    x = 6,154,854.51/3,705.21
  6. Step 6: Final answer
    x = 1,661.14

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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.