Home / 7,358.07-11,039.28-2,978.67

Finding the Fourth Proportional to 7,358.07, 11,039.28 and 2,978.67

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Solution

The fourth proportional to 7,358.07, 11,039.28 and 2,978.67 is: 4,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.07 : 11,039.28 = 2,978.67 : x
  2. Step 2: Convert to fraction form
    7,358.07/11,039.28 = 2,978.67/x
  3. Step 3: Cross multiply
    7,358.07x = 11,039.28 × 2,978.67
  4. Step 4: Simplify right side
    7,358.07x = 32,882,372.16
  5. Step 5: Solve for x
    x = 32,882,372.16/7,358.07
  6. Step 6: Final answer
    x = 4,468.89

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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.