Home / 3,679.98-5,068.65-2,840.73

Finding the Fourth Proportional to 3,679.98, 5,068.65 and 2,840.73

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Solution

The fourth proportional to 3,679.98, 5,068.65 and 2,840.73 is: 3,912.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.98 : 5,068.65 = 2,840.73 : x
  2. Step 2: Convert to fraction form
    3,679.98/5,068.65 = 2,840.73/x
  3. Step 3: Cross multiply
    3,679.98x = 5,068.65 × 2,840.73
  4. Step 4: Simplify right side
    3,679.98x = 14,398,666.11
  5. Step 5: Solve for x
    x = 14,398,666.11/3,679.98
  6. Step 6: Final answer
    x = 3,912.70

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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.