Home / 5,153.36-7,111.43-2,795.45

Finding the Fourth Proportional to 5,153.36, 7,111.43 and 2,795.45

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Solution

The fourth proportional to 5,153.36, 7,111.43 and 2,795.45 is: 3,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.36 : 7,111.43 = 2,795.45 : x
  2. Step 2: Convert to fraction form
    5,153.36/7,111.43 = 2,795.45/x
  3. Step 3: Cross multiply
    5,153.36x = 7,111.43 × 2,795.45
  4. Step 4: Simplify right side
    5,153.36x = 19,879,618.42
  5. Step 5: Solve for x
    x = 19,879,618.42/5,153.36
  6. Step 6: Final answer
    x = 3,857.61

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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.