Home / 5,153.68-7,112.04-2,795.80

Finding the Fourth Proportional to 5,153.68, 7,112.04 and 2,795.80

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Solution

The fourth proportional to 5,153.68, 7,112.04 and 2,795.80 is: 3,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.68 : 7,112.04 = 2,795.80 : x
  2. Step 2: Convert to fraction form
    5,153.68/7,112.04 = 2,795.80/x
  3. Step 3: Cross multiply
    5,153.68x = 7,112.04 × 2,795.80
  4. Step 4: Simplify right side
    5,153.68x = 19,883,841.43
  5. Step 5: Solve for x
    x = 19,883,841.43/5,153.68
  6. Step 6: Final answer
    x = 3,858.18

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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.