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Finding the Fourth Proportional to 2,438.66, 3,657.33 and 683.56

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Solution

The fourth proportional to 2,438.66, 3,657.33 and 683.56 is: 1,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.66 : 3,657.33 = 683.56 : x
  2. Step 2: Convert to fraction form
    2,438.66/3,657.33 = 683.56/x
  3. Step 3: Cross multiply
    2,438.66x = 3,657.33 × 683.56
  4. Step 4: Simplify right side
    2,438.66x = 2,500,004.49
  5. Step 5: Solve for x
    x = 2,500,004.49/2,438.66
  6. Step 6: Final answer
    x = 1,025.16

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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.