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Finding the Fourth Proportional to 1,608.48, 2,409.48 and 1,319.04

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Solution

The fourth proportional to 1,608.48, 2,409.48 and 1,319.04 is: 1,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.48 : 2,409.48 = 1,319.04 : x
  2. Step 2: Convert to fraction form
    1,608.48/2,409.48 = 1,319.04/x
  3. Step 3: Cross multiply
    1,608.48x = 2,409.48 × 1,319.04
  4. Step 4: Simplify right side
    1,608.48x = 3,178,200.50
  5. Step 5: Solve for x
    x = 3,178,200.50/1,608.48
  6. Step 6: Final answer
    x = 1,975.90

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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.