Home / 4,261.42-6,392.28-1,921.06

Finding the Fourth Proportional to 4,261.42, 6,392.28 and 1,921.06

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Solution

The fourth proportional to 4,261.42, 6,392.28 and 1,921.06 is: 2,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.42 : 6,392.28 = 1,921.06 : x
  2. Step 2: Convert to fraction form
    4,261.42/6,392.28 = 1,921.06/x
  3. Step 3: Cross multiply
    4,261.42x = 6,392.28 × 1,921.06
  4. Step 4: Simplify right side
    4,261.42x = 12,279,953.42
  5. Step 5: Solve for x
    x = 12,279,953.42/4,261.42
  6. Step 6: Final answer
    x = 2,881.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.