Home / 1,975.85-2,726.59-1,135.98

Finding the Fourth Proportional to 1,975.85, 2,726.59 and 1,135.98

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Solution

The fourth proportional to 1,975.85, 2,726.59 and 1,135.98 is: 1,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.85 : 2,726.59 = 1,135.98 : x
  2. Step 2: Convert to fraction form
    1,975.85/2,726.59 = 1,135.98/x
  3. Step 3: Cross multiply
    1,975.85x = 2,726.59 × 1,135.98
  4. Step 4: Simplify right side
    1,975.85x = 3,097,348.76
  5. Step 5: Solve for x
    x = 3,097,348.76/1,975.85
  6. Step 6: Final answer
    x = 1,567.61

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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.