Home / 7,340.50-11,011.29-2,146.78

Finding the Fourth Proportional to 7,340.50, 11,011.29 and 2,146.78

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Solution

The fourth proportional to 7,340.50, 11,011.29 and 2,146.78 is: 3,220.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.50 : 11,011.29 = 2,146.78 : x
  2. Step 2: Convert to fraction form
    7,340.50/11,011.29 = 2,146.78/x
  3. Step 3: Cross multiply
    7,340.50x = 11,011.29 × 2,146.78
  4. Step 4: Simplify right side
    7,340.50x = 23,638,817.15
  5. Step 5: Solve for x
    x = 23,638,817.15/7,340.50
  6. Step 6: Final answer
    x = 3,220.33

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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.