Home / 1,862.26-2,570.16-1,272.58

Finding the Fourth Proportional to 1,862.26, 2,570.16 and 1,272.58

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Solution

The fourth proportional to 1,862.26, 2,570.16 and 1,272.58 is: 1,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.26 : 2,570.16 = 1,272.58 : x
  2. Step 2: Convert to fraction form
    1,862.26/2,570.16 = 1,272.58/x
  3. Step 3: Cross multiply
    1,862.26x = 2,570.16 × 1,272.58
  4. Step 4: Simplify right side
    1,862.26x = 3,270,734.21
  5. Step 5: Solve for x
    x = 3,270,734.21/1,862.26
  6. Step 6: Final answer
    x = 1,756.33

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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.