Home / 5,155.37-7,114.43-2,797.51

Finding the Fourth Proportional to 5,155.37, 7,114.43 and 2,797.51

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Solution

The fourth proportional to 5,155.37, 7,114.43 and 2,797.51 is: 3,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.37 : 7,114.43 = 2,797.51 : x
  2. Step 2: Convert to fraction form
    5,155.37/7,114.43 = 2,797.51/x
  3. Step 3: Cross multiply
    5,155.37x = 7,114.43 × 2,797.51
  4. Step 4: Simplify right side
    5,155.37x = 19,902,689.07
  5. Step 5: Solve for x
    x = 19,902,689.07/5,155.37
  6. Step 6: Final answer
    x = 3,860.57

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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.