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Finding the Fourth Proportional to 4,650.16, 6,975.20 and 1,728.40

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Solution

The fourth proportional to 4,650.16, 6,975.20 and 1,728.40 is: 2,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,650.16 : 6,975.20 = 1,728.40 : x
  2. Step 2: Convert to fraction form
    4,650.16/6,975.20 = 1,728.40/x
  3. Step 3: Cross multiply
    4,650.16x = 6,975.20 × 1,728.40
  4. Step 4: Simplify right side
    4,650.16x = 12,055,935.68
  5. Step 5: Solve for x
    x = 12,055,935.68/4,650.16
  6. Step 6: Final answer
    x = 2,592.59

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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.