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Finding the Fourth Proportional to 6,975.94, 10,480.98 and 4,478.20

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Solution

The fourth proportional to 6,975.94, 10,480.98 and 4,478.20 is: 6,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.94 : 10,480.98 = 4,478.20 : x
  2. Step 2: Convert to fraction form
    6,975.94/10,480.98 = 4,478.20/x
  3. Step 3: Cross multiply
    6,975.94x = 10,480.98 × 4,478.20
  4. Step 4: Simplify right side
    6,975.94x = 46,935,924.64
  5. Step 5: Solve for x
    x = 46,935,924.64/6,975.94
  6. Step 6: Final answer
    x = 6,728.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.