Home / 4,912.91-7,334.95-4,317.80

Finding the Fourth Proportional to 4,912.91, 7,334.95 and 4,317.80

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Solution

The fourth proportional to 4,912.91, 7,334.95 and 4,317.80 is: 6,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.91 : 7,334.95 = 4,317.80 : x
  2. Step 2: Convert to fraction form
    4,912.91/7,334.95 = 4,317.80/x
  3. Step 3: Cross multiply
    4,912.91x = 7,334.95 × 4,317.80
  4. Step 4: Simplify right side
    4,912.91x = 31,670,847.11
  5. Step 5: Solve for x
    x = 31,670,847.11/4,912.91
  6. Step 6: Final answer
    x = 6,446.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.