Home / 4,688.91-7,033.25-1,728.05

Finding the Fourth Proportional to 4,688.91, 7,033.25 and 1,728.05

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Solution

The fourth proportional to 4,688.91, 7,033.25 and 1,728.05 is: 2,592.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.91 : 7,033.25 = 1,728.05 : x
  2. Step 2: Convert to fraction form
    4,688.91/7,033.25 = 1,728.05/x
  3. Step 3: Cross multiply
    4,688.91x = 7,033.25 × 1,728.05
  4. Step 4: Simplify right side
    4,688.91x = 12,153,763.86
  5. Step 5: Solve for x
    x = 12,153,763.86/4,688.91
  6. Step 6: Final answer
    x = 2,592.02

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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.