Home / 6,278.40-8,667.95-3,923.73

Finding the Fourth Proportional to 6,278.40, 8,667.95 and 3,923.73

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Solution

The fourth proportional to 6,278.40, 8,667.95 and 3,923.73 is: 5,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.40 : 8,667.95 = 3,923.73 : x
  2. Step 2: Convert to fraction form
    6,278.40/8,667.95 = 3,923.73/x
  3. Step 3: Cross multiply
    6,278.40x = 8,667.95 × 3,923.73
  4. Step 4: Simplify right side
    6,278.40x = 34,010,675.83
  5. Step 5: Solve for x
    x = 34,010,675.83/6,278.40
  6. Step 6: Final answer
    x = 5,417.09

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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.