Home / 5,940.36-8,206.38-4,689.72

Finding the Fourth Proportional to 5,940.36, 8,206.38 and 4,689.72

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Solution

The fourth proportional to 5,940.36, 8,206.38 and 4,689.72 is: 6,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.36 : 8,206.38 = 4,689.72 : x
  2. Step 2: Convert to fraction form
    5,940.36/8,206.38 = 4,689.72/x
  3. Step 3: Cross multiply
    5,940.36x = 8,206.38 × 4,689.72
  4. Step 4: Simplify right side
    5,940.36x = 38,485,624.41
  5. Step 5: Solve for x
    x = 38,485,624.41/5,940.36
  6. Step 6: Final answer
    x = 6,478.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.