Home / 2,913.72-4,369.97-1,728.23

Finding the Fourth Proportional to 2,913.72, 4,369.97 and 1,728.23

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Solution

The fourth proportional to 2,913.72, 4,369.97 and 1,728.23 is: 2,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.72 : 4,369.97 = 1,728.23 : x
  2. Step 2: Convert to fraction form
    2,913.72/4,369.97 = 1,728.23/x
  3. Step 3: Cross multiply
    2,913.72x = 4,369.97 × 1,728.23
  4. Step 4: Simplify right side
    2,913.72x = 7,552,282.76
  5. Step 5: Solve for x
    x = 7,552,282.76/2,913.72
  6. Step 6: Final answer
    x = 2,591.97

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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.