Home / 1,868.54-2,578.53-1,112.35

Finding the Fourth Proportional to 1,868.54, 2,578.53 and 1,112.35

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Solution

The fourth proportional to 1,868.54, 2,578.53 and 1,112.35 is: 1,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.54 : 2,578.53 = 1,112.35 : x
  2. Step 2: Convert to fraction form
    1,868.54/2,578.53 = 1,112.35/x
  3. Step 3: Cross multiply
    1,868.54x = 2,578.53 × 1,112.35
  4. Step 4: Simplify right side
    1,868.54x = 2,868,230.41
  5. Step 5: Solve for x
    x = 2,868,230.41/1,868.54
  6. Step 6: Final answer
    x = 1,535.02

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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.