Home / 6,403.86-8,834.28-3,749.64

Finding the Fourth Proportional to 6,403.86, 8,834.28 and 3,749.64

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Solution

The fourth proportional to 6,403.86, 8,834.28 and 3,749.64 is: 5,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.86 : 8,834.28 = 3,749.64 : x
  2. Step 2: Convert to fraction form
    6,403.86/8,834.28 = 3,749.64/x
  3. Step 3: Cross multiply
    6,403.86x = 8,834.28 × 3,749.64
  4. Step 4: Simplify right side
    6,403.86x = 33,125,369.66
  5. Step 5: Solve for x
    x = 33,125,369.66/6,403.86
  6. Step 6: Final answer
    x = 5,172.72

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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.