Home / 5,153.19-7,111.37-2,795.28

Finding the Fourth Proportional to 5,153.19, 7,111.37 and 2,795.28

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Solution

The fourth proportional to 5,153.19, 7,111.37 and 2,795.28 is: 3,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.19 : 7,111.37 = 2,795.28 : x
  2. Step 2: Convert to fraction form
    5,153.19/7,111.37 = 2,795.28/x
  3. Step 3: Cross multiply
    5,153.19x = 7,111.37 × 2,795.28
  4. Step 4: Simplify right side
    5,153.19x = 19,878,277.32
  5. Step 5: Solve for x
    x = 19,878,277.32/5,153.19
  6. Step 6: Final answer
    x = 3,857.47

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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.