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Finding the Fourth Proportional to 2,339.48, 3,507.77 and 800.60

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Solution

The fourth proportional to 2,339.48, 3,507.77 and 800.60 is: 1,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.48 : 3,507.77 = 800.60 : x
  2. Step 2: Convert to fraction form
    2,339.48/3,507.77 = 800.60/x
  3. Step 3: Cross multiply
    2,339.48x = 3,507.77 × 800.60
  4. Step 4: Simplify right side
    2,339.48x = 2,808,305.12
  5. Step 5: Solve for x
    x = 2,808,305.12/2,339.48
  6. Step 6: Final answer
    x = 1,200.40

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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.