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Finding the Fourth Proportional to 7,368.80, 11,053.36 and 1,896.80

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Solution

The fourth proportional to 7,368.80, 11,053.36 and 1,896.80 is: 2,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.80 : 11,053.36 = 1,896.80 : x
  2. Step 2: Convert to fraction form
    7,368.80/11,053.36 = 1,896.80/x
  3. Step 3: Cross multiply
    7,368.80x = 11,053.36 × 1,896.80
  4. Step 4: Simplify right side
    7,368.80x = 20,966,013.25
  5. Step 5: Solve for x
    x = 20,966,013.25/7,368.80
  6. Step 6: Final answer
    x = 2,845.24

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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.