Home / 1,694.04-2,335.47-1,189.21

Finding the Fourth Proportional to 1,694.04, 2,335.47 and 1,189.21

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Solution

The fourth proportional to 1,694.04, 2,335.47 and 1,189.21 is: 1,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.04 : 2,335.47 = 1,189.21 : x
  2. Step 2: Convert to fraction form
    1,694.04/2,335.47 = 1,189.21/x
  3. Step 3: Cross multiply
    1,694.04x = 2,335.47 × 1,189.21
  4. Step 4: Simplify right side
    1,694.04x = 2,777,352.60
  5. Step 5: Solve for x
    x = 2,777,352.60/1,694.04
  6. Step 6: Final answer
    x = 1,639.48

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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.