Home / 1,407.75-2,106.77-1,359.15

Finding the Fourth Proportional to 1,407.75, 2,106.77 and 1,359.15

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Solution

The fourth proportional to 1,407.75, 2,106.77 and 1,359.15 is: 2,034.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.75 : 2,106.77 = 1,359.15 : x
  2. Step 2: Convert to fraction form
    1,407.75/2,106.77 = 1,359.15/x
  3. Step 3: Cross multiply
    1,407.75x = 2,106.77 × 1,359.15
  4. Step 4: Simplify right side
    1,407.75x = 2,863,409.65
  5. Step 5: Solve for x
    x = 2,863,409.65/1,407.75
  6. Step 6: Final answer
    x = 2,034.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.