Home / 1,962.66-2,707.55-1,216.35

Finding the Fourth Proportional to 1,962.66, 2,707.55 and 1,216.35

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Solution

The fourth proportional to 1,962.66, 2,707.55 and 1,216.35 is: 1,677.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.66 : 2,707.55 = 1,216.35 : x
  2. Step 2: Convert to fraction form
    1,962.66/2,707.55 = 1,216.35/x
  3. Step 3: Cross multiply
    1,962.66x = 2,707.55 × 1,216.35
  4. Step 4: Simplify right side
    1,962.66x = 3,293,328.44
  5. Step 5: Solve for x
    x = 3,293,328.44/1,962.66
  6. Step 6: Final answer
    x = 1,677.99

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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.