Home / 1,485.03-2,226.63-755.12

Finding the Fourth Proportional to 1,485.03, 2,226.63 and 755.12

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Solution

The fourth proportional to 1,485.03, 2,226.63 and 755.12 is: 1,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.03 : 2,226.63 = 755.12 : x
  2. Step 2: Convert to fraction form
    1,485.03/2,226.63 = 755.12/x
  3. Step 3: Cross multiply
    1,485.03x = 2,226.63 × 755.12
  4. Step 4: Simplify right side
    1,485.03x = 1,681,361.71
  5. Step 5: Solve for x
    x = 1,681,361.71/1,485.03
  6. Step 6: Final answer
    x = 1,132.21

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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.