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Finding the Fourth Proportional to 7,368.89, 11,053.13 and 3,208.89

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Solution

The fourth proportional to 7,368.89, 11,053.13 and 3,208.89 is: 4,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.89 : 11,053.13 = 3,208.89 : x
  2. Step 2: Convert to fraction form
    7,368.89/11,053.13 = 3,208.89/x
  3. Step 3: Cross multiply
    7,368.89x = 11,053.13 × 3,208.89
  4. Step 4: Simplify right side
    7,368.89x = 35,468,262.28
  5. Step 5: Solve for x
    x = 35,468,262.28/7,368.89
  6. Step 6: Final answer
    x = 4,813.25

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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.