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Finding the Fourth Proportional to 7,209.36, 10,818.36 and 2,592.72

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Solution

The fourth proportional to 7,209.36, 10,818.36 and 2,592.72 is: 3,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.36 : 10,818.36 = 2,592.72 : x
  2. Step 2: Convert to fraction form
    7,209.36/10,818.36 = 2,592.72/x
  3. Step 3: Cross multiply
    7,209.36x = 10,818.36 × 2,592.72
  4. Step 4: Simplify right side
    7,209.36x = 28,048,978.34
  5. Step 5: Solve for x
    x = 28,048,978.34/7,209.36
  6. Step 6: Final answer
    x = 3,890.63

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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.