Home / 2,980.72-4,113.13-1,654.43

Finding the Fourth Proportional to 2,980.72, 4,113.13 and 1,654.43

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Solution

The fourth proportional to 2,980.72, 4,113.13 and 1,654.43 is: 2,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.72 : 4,113.13 = 1,654.43 : x
  2. Step 2: Convert to fraction form
    2,980.72/4,113.13 = 1,654.43/x
  3. Step 3: Cross multiply
    2,980.72x = 4,113.13 × 1,654.43
  4. Step 4: Simplify right side
    2,980.72x = 6,804,885.67
  5. Step 5: Solve for x
    x = 6,804,885.67/2,980.72
  6. Step 6: Final answer
    x = 2,282.97

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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.