Home / 5,153.72-7,112.16-2,795.84

Finding the Fourth Proportional to 5,153.72, 7,112.16 and 2,795.84

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Solution

The fourth proportional to 5,153.72, 7,112.16 and 2,795.84 is: 3,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.72 : 7,112.16 = 2,795.84 : x
  2. Step 2: Convert to fraction form
    5,153.72/7,112.16 = 2,795.84/x
  3. Step 3: Cross multiply
    5,153.72x = 7,112.16 × 2,795.84
  4. Step 4: Simplify right side
    5,153.72x = 19,884,461.41
  5. Step 5: Solve for x
    x = 19,884,461.41/5,153.72
  6. Step 6: Final answer
    x = 3,858.27

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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.