Home / 2,214.22-3,321.12-753.40

Finding the Fourth Proportional to 2,214.22, 3,321.12 and 753.40

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Solution

The fourth proportional to 2,214.22, 3,321.12 and 753.40 is: 1,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.22 : 3,321.12 = 753.40 : x
  2. Step 2: Convert to fraction form
    2,214.22/3,321.12 = 753.40/x
  3. Step 3: Cross multiply
    2,214.22x = 3,321.12 × 753.40
  4. Step 4: Simplify right side
    2,214.22x = 2,502,131.81
  5. Step 5: Solve for x
    x = 2,502,131.81/2,214.22
  6. Step 6: Final answer
    x = 1,130.03

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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.