Home / 1,660.05-2,290.45-1,069.88

Finding the Fourth Proportional to 1,660.05, 2,290.45 and 1,069.88

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Solution

The fourth proportional to 1,660.05, 2,290.45 and 1,069.88 is: 1,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.05 : 2,290.45 = 1,069.88 : x
  2. Step 2: Convert to fraction form
    1,660.05/2,290.45 = 1,069.88/x
  3. Step 3: Cross multiply
    1,660.05x = 2,290.45 × 1,069.88
  4. Step 4: Simplify right side
    1,660.05x = 2,450,506.65
  5. Step 5: Solve for x
    x = 2,450,506.65/1,660.05
  6. Step 6: Final answer
    x = 1,476.16

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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.