Home / 5,153.21-7,111.38-2,795.35

Finding the Fourth Proportional to 5,153.21, 7,111.38 and 2,795.35

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Solution

The fourth proportional to 5,153.21, 7,111.38 and 2,795.35 is: 3,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.21 : 7,111.38 = 2,795.35 : x
  2. Step 2: Convert to fraction form
    5,153.21/7,111.38 = 2,795.35/x
  3. Step 3: Cross multiply
    5,153.21x = 7,111.38 × 2,795.35
  4. Step 4: Simplify right side
    5,153.21x = 19,878,796.08
  5. Step 5: Solve for x
    x = 19,878,796.08/5,153.21
  6. Step 6: Final answer
    x = 3,857.56

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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.