Home / 3,754.12-5,178.74-2,261.32

Finding the Fourth Proportional to 3,754.12, 5,178.74 and 2,261.32

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Solution

The fourth proportional to 3,754.12, 5,178.74 and 2,261.32 is: 3,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.12 : 5,178.74 = 2,261.32 : x
  2. Step 2: Convert to fraction form
    3,754.12/5,178.74 = 2,261.32/x
  3. Step 3: Cross multiply
    3,754.12x = 5,178.74 × 2,261.32
  4. Step 4: Simplify right side
    3,754.12x = 11,710,788.34
  5. Step 5: Solve for x
    x = 11,710,788.34/3,754.12
  6. Step 6: Final answer
    x = 3,119.45

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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.