Home / 7,622.48-11,428.25-3,460.40

Finding the Fourth Proportional to 7,622.48, 11,428.25 and 3,460.40

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Solution

The fourth proportional to 7,622.48, 11,428.25 and 3,460.40 is: 5,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.48 : 11,428.25 = 3,460.40 : x
  2. Step 2: Convert to fraction form
    7,622.48/11,428.25 = 3,460.40/x
  3. Step 3: Cross multiply
    7,622.48x = 11,428.25 × 3,460.40
  4. Step 4: Simplify right side
    7,622.48x = 39,546,316.30
  5. Step 5: Solve for x
    x = 39,546,316.30/7,622.48
  6. Step 6: Final answer
    x = 5,188.12

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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.