Home / 3,626.51-5,439.15-1,405.01

Finding the Fourth Proportional to 3,626.51, 5,439.15 and 1,405.01

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Solution

The fourth proportional to 3,626.51, 5,439.15 and 1,405.01 is: 2,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.51 : 5,439.15 = 1,405.01 : x
  2. Step 2: Convert to fraction form
    3,626.51/5,439.15 = 1,405.01/x
  3. Step 3: Cross multiply
    3,626.51x = 5,439.15 × 1,405.01
  4. Step 4: Simplify right side
    3,626.51x = 7,642,073.74
  5. Step 5: Solve for x
    x = 7,642,073.74/3,626.51
  6. Step 6: Final answer
    x = 2,107.28

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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.