Home / 5,153.69-7,112.04-2,795.78

Finding the Fourth Proportional to 5,153.69, 7,112.04 and 2,795.78

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Solution

The fourth proportional to 5,153.69, 7,112.04 and 2,795.78 is: 3,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.69 : 7,112.04 = 2,795.78 : x
  2. Step 2: Convert to fraction form
    5,153.69/7,112.04 = 2,795.78/x
  3. Step 3: Cross multiply
    5,153.69x = 7,112.04 × 2,795.78
  4. Step 4: Simplify right side
    5,153.69x = 19,883,699.19
  5. Step 5: Solve for x
    x = 19,883,699.19/5,153.69
  6. Step 6: Final answer
    x = 3,858.15

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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.