Home / 5,157.63-7,119.37-3,061.75

Finding the Fourth Proportional to 5,157.63, 7,119.37 and 3,061.75

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Solution

The fourth proportional to 5,157.63, 7,119.37 and 3,061.75 is: 4,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.63 : 7,119.37 = 3,061.75 : x
  2. Step 2: Convert to fraction form
    5,157.63/7,119.37 = 3,061.75/x
  3. Step 3: Cross multiply
    5,157.63x = 7,119.37 × 3,061.75
  4. Step 4: Simplify right side
    5,157.63x = 21,797,731.10
  5. Step 5: Solve for x
    x = 21,797,731.10/5,157.63
  6. Step 6: Final answer
    x = 4,226.31

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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.