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Finding the Fourth Proportional to 3,469.35, 4,779.35 and 2,405.24

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Solution

The fourth proportional to 3,469.35, 4,779.35 and 2,405.24 is: 3,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.35 : 4,779.35 = 2,405.24 : x
  2. Step 2: Convert to fraction form
    3,469.35/4,779.35 = 2,405.24/x
  3. Step 3: Cross multiply
    3,469.35x = 4,779.35 × 2,405.24
  4. Step 4: Simplify right side
    3,469.35x = 11,495,465.91
  5. Step 5: Solve for x
    x = 11,495,465.91/3,469.35
  6. Step 6: Final answer
    x = 3,313.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.