Home / 1,964.04-2,708.84-1,217.58

Finding the Fourth Proportional to 1,964.04, 2,708.84 and 1,217.58

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Solution

The fourth proportional to 1,964.04, 2,708.84 and 1,217.58 is: 1,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.04 : 2,708.84 = 1,217.58 : x
  2. Step 2: Convert to fraction form
    1,964.04/2,708.84 = 1,217.58/x
  3. Step 3: Cross multiply
    1,964.04x = 2,708.84 × 1,217.58
  4. Step 4: Simplify right side
    1,964.04x = 3,298,232.45
  5. Step 5: Solve for x
    x = 3,298,232.45/1,964.04
  6. Step 6: Final answer
    x = 1,679.31

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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.