Home / 3,626.12-5,439.36-1,129.01

Finding the Fourth Proportional to 3,626.12, 5,439.36 and 1,129.01

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Solution

The fourth proportional to 3,626.12, 5,439.36 and 1,129.01 is: 1,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.12 : 5,439.36 = 1,129.01 : x
  2. Step 2: Convert to fraction form
    3,626.12/5,439.36 = 1,129.01/x
  3. Step 3: Cross multiply
    3,626.12x = 5,439.36 × 1,129.01
  4. Step 4: Simplify right side
    3,626.12x = 6,141,058.99
  5. Step 5: Solve for x
    x = 6,141,058.99/3,626.12
  6. Step 6: Final answer
    x = 1,693.56

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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.