Home / 6,317.40-8,721.60-4,195.85

Finding the Fourth Proportional to 6,317.40, 8,721.60 and 4,195.85

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Solution

The fourth proportional to 6,317.40, 8,721.60 and 4,195.85 is: 5,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.40 : 8,721.60 = 4,195.85 : x
  2. Step 2: Convert to fraction form
    6,317.40/8,721.60 = 4,195.85/x
  3. Step 3: Cross multiply
    6,317.40x = 8,721.60 × 4,195.85
  4. Step 4: Simplify right side
    6,317.40x = 36,594,466.02
  5. Step 5: Solve for x
    x = 36,594,466.02/6,317.40
  6. Step 6: Final answer
    x = 5,792.64

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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.