Home / 6,247.67-8,622.72-3,890.57

Finding the Fourth Proportional to 6,247.67, 8,622.72 and 3,890.57

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Solution

The fourth proportional to 6,247.67, 8,622.72 and 3,890.57 is: 5,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.67 : 8,622.72 = 3,890.57 : x
  2. Step 2: Convert to fraction form
    6,247.67/8,622.72 = 3,890.57/x
  3. Step 3: Cross multiply
    6,247.67x = 8,622.72 × 3,890.57
  4. Step 4: Simplify right side
    6,247.67x = 33,547,252.64
  5. Step 5: Solve for x
    x = 33,547,252.64/6,247.67
  6. Step 6: Final answer
    x = 5,369.57

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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.