Home / 6,039.72-8,336.64-3,915.36

Finding the Fourth Proportional to 6,039.72, 8,336.64 and 3,915.36

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Solution

The fourth proportional to 6,039.72, 8,336.64 and 3,915.36 is: 5,404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,039.72 : 8,336.64 = 3,915.36 : x
  2. Step 2: Convert to fraction form
    6,039.72/8,336.64 = 3,915.36/x
  3. Step 3: Cross multiply
    6,039.72x = 8,336.64 × 3,915.36
  4. Step 4: Simplify right side
    6,039.72x = 32,640,946.79
  5. Step 5: Solve for x
    x = 32,640,946.79/6,039.72
  6. Step 6: Final answer
    x = 5,404.38

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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.