Home / 1,669.75-2,303.07-1,040.65

Finding the Fourth Proportional to 1,669.75, 2,303.07 and 1,040.65

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Solution

The fourth proportional to 1,669.75, 2,303.07 and 1,040.65 is: 1,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.75 : 2,303.07 = 1,040.65 : x
  2. Step 2: Convert to fraction form
    1,669.75/2,303.07 = 1,040.65/x
  3. Step 3: Cross multiply
    1,669.75x = 2,303.07 × 1,040.65
  4. Step 4: Simplify right side
    1,669.75x = 2,396,684.53
  5. Step 5: Solve for x
    x = 2,396,684.53/1,669.75
  6. Step 6: Final answer
    x = 1,435.35

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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.