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Finding the Fourth Proportional to 7,176, 10,764 and 2,312

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Solution

The fourth proportional to 7,176, 10,764 and 2,312 is: 3,468

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176 : 10,764 = 2,312 : x
  2. Step 2: Convert to fraction form
    7,176/10,764 = 2,312/x
  3. Step 3: Cross multiply
    7,176x = 10,764 × 2,312
  4. Step 4: Simplify right side
    7,176x = 24,886,368
  5. Step 5: Solve for x
    x = 24,886,368/7,176
  6. Step 6: Final answer
    x = 3,468

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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.