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Finding the Fourth Proportional to 4,868.28, 7,303.68 and 2,790.63

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Solution

The fourth proportional to 4,868.28, 7,303.68 and 2,790.63 is: 4,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.28 : 7,303.68 = 2,790.63 : x
  2. Step 2: Convert to fraction form
    4,868.28/7,303.68 = 2,790.63/x
  3. Step 3: Cross multiply
    4,868.28x = 7,303.68 × 2,790.63
  4. Step 4: Simplify right side
    4,868.28x = 20,381,868.52
  5. Step 5: Solve for x
    x = 20,381,868.52/4,868.28
  6. Step 6: Final answer
    x = 4,186.67

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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.