Home / 7,896.90-11,835.08-3,211.45

Finding the Fourth Proportional to 7,896.90, 11,835.08 and 3,211.45

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Solution

The fourth proportional to 7,896.90, 11,835.08 and 3,211.45 is: 4,813.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.90 : 11,835.08 = 3,211.45 : x
  2. Step 2: Convert to fraction form
    7,896.90/11,835.08 = 3,211.45/x
  3. Step 3: Cross multiply
    7,896.90x = 11,835.08 × 3,211.45
  4. Step 4: Simplify right side
    7,896.90x = 38,007,790.49
  5. Step 5: Solve for x
    x = 38,007,790.49/7,896.90
  6. Step 6: Final answer
    x = 4,813.00

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1.5x scale

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.