Home / 7,288.13-10,930.38-3,127.67

Finding the Fourth Proportional to 7,288.13, 10,930.38 and 3,127.67

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Solution

The fourth proportional to 7,288.13, 10,930.38 and 3,127.67 is: 4,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.13 : 10,930.38 = 3,127.67 : x
  2. Step 2: Convert to fraction form
    7,288.13/10,930.38 = 3,127.67/x
  3. Step 3: Cross multiply
    7,288.13x = 10,930.38 × 3,127.67
  4. Step 4: Simplify right side
    7,288.13x = 34,186,566.96
  5. Step 5: Solve for x
    x = 34,186,566.96/7,288.13
  6. Step 6: Final answer
    x = 4,690.72

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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.