Home / 2,173.10-2,998.74-1,215.98

Finding the Fourth Proportional to 2,173.10, 2,998.74 and 1,215.98

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Solution

The fourth proportional to 2,173.10, 2,998.74 and 1,215.98 is: 1,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.10 : 2,998.74 = 1,215.98 : x
  2. Step 2: Convert to fraction form
    2,173.10/2,998.74 = 1,215.98/x
  3. Step 3: Cross multiply
    2,173.10x = 2,998.74 × 1,215.98
  4. Step 4: Simplify right side
    2,173.10x = 3,646,415.36
  5. Step 5: Solve for x
    x = 3,646,415.36/2,173.10
  6. Step 6: Final answer
    x = 1,677.98

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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.