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Finding the Fourth Proportional to 5,153.39, 7,111.48 and 2,795.48

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Solution

The fourth proportional to 5,153.39, 7,111.48 and 2,795.48 is: 3,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.39 : 7,111.48 = 2,795.48 : x
  2. Step 2: Convert to fraction form
    5,153.39/7,111.48 = 2,795.48/x
  3. Step 3: Cross multiply
    5,153.39x = 7,111.48 × 2,795.48
  4. Step 4: Simplify right side
    5,153.39x = 19,879,950.58
  5. Step 5: Solve for x
    x = 19,879,950.58/5,153.39
  6. Step 6: Final answer
    x = 3,857.65

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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.