Home / 6,211.81-9,315.87-3,288.52

Finding the Fourth Proportional to 6,211.81, 9,315.87 and 3,288.52

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Solution

The fourth proportional to 6,211.81, 9,315.87 and 3,288.52 is: 4,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.81 : 9,315.87 = 3,288.52 : x
  2. Step 2: Convert to fraction form
    6,211.81/9,315.87 = 3,288.52/x
  3. Step 3: Cross multiply
    6,211.81x = 9,315.87 × 3,288.52
  4. Step 4: Simplify right side
    6,211.81x = 30,635,424.81
  5. Step 5: Solve for x
    x = 30,635,424.81/6,211.81
  6. Step 6: Final answer
    x = 4,931.80

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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.