Home / 5,678.37-7,834.86-3,439.26

Finding the Fourth Proportional to 5,678.37, 7,834.86 and 3,439.26

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Solution

The fourth proportional to 5,678.37, 7,834.86 and 3,439.26 is: 4,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.37 : 7,834.86 = 3,439.26 : x
  2. Step 2: Convert to fraction form
    5,678.37/7,834.86 = 3,439.26/x
  3. Step 3: Cross multiply
    5,678.37x = 7,834.86 × 3,439.26
  4. Step 4: Simplify right side
    5,678.37x = 26,946,120.60
  5. Step 5: Solve for x
    x = 26,946,120.60/5,678.37
  6. Step 6: Final answer
    x = 4,745.40

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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.