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Finding the Fourth Proportional to 2,419.96, 3,630.24 and 776.62

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Solution

The fourth proportional to 2,419.96, 3,630.24 and 776.62 is: 1,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.96 : 3,630.24 = 776.62 : x
  2. Step 2: Convert to fraction form
    2,419.96/3,630.24 = 776.62/x
  3. Step 3: Cross multiply
    2,419.96x = 3,630.24 × 776.62
  4. Step 4: Simplify right side
    2,419.96x = 2,819,316.99
  5. Step 5: Solve for x
    x = 2,819,316.99/2,419.96
  6. Step 6: Final answer
    x = 1,165.03

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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.