Home / 4,327.39-6,490.24-1,986.85

Finding the Fourth Proportional to 4,327.39, 6,490.24 and 1,986.85

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Solution

The fourth proportional to 4,327.39, 6,490.24 and 1,986.85 is: 2,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,327.39 : 6,490.24 = 1,986.85 : x
  2. Step 2: Convert to fraction form
    4,327.39/6,490.24 = 1,986.85/x
  3. Step 3: Cross multiply
    4,327.39x = 6,490.24 × 1,986.85
  4. Step 4: Simplify right side
    4,327.39x = 12,895,133.34
  5. Step 5: Solve for x
    x = 12,895,133.34/4,327.39
  6. Step 6: Final answer
    x = 2,979.89

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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.