Home / 1,975.18-2,725.76-1,135.95

Finding the Fourth Proportional to 1,975.18, 2,725.76 and 1,135.95

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Solution

The fourth proportional to 1,975.18, 2,725.76 and 1,135.95 is: 1,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.18 : 2,725.76 = 1,135.95 : x
  2. Step 2: Convert to fraction form
    1,975.18/2,725.76 = 1,135.95/x
  3. Step 3: Cross multiply
    1,975.18x = 2,725.76 × 1,135.95
  4. Step 4: Simplify right side
    1,975.18x = 3,096,327.07
  5. Step 5: Solve for x
    x = 3,096,327.07/1,975.18
  6. Step 6: Final answer
    x = 1,567.62

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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.