Home / 3,738.12-5,155.62-2,557.32

Finding the Fourth Proportional to 3,738.12, 5,155.62 and 2,557.32

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Solution

The fourth proportional to 3,738.12, 5,155.62 and 2,557.32 is: 3,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.12 : 5,155.62 = 2,557.32 : x
  2. Step 2: Convert to fraction form
    3,738.12/5,155.62 = 2,557.32/x
  3. Step 3: Cross multiply
    3,738.12x = 5,155.62 × 2,557.32
  4. Step 4: Simplify right side
    3,738.12x = 13,184,570.14
  5. Step 5: Solve for x
    x = 13,184,570.14/3,738.12
  6. Step 6: Final answer
    x = 3,527.06

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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.