Home / 1,862.86-2,570.57-1,116.68

Finding the Fourth Proportional to 1,862.86, 2,570.57 and 1,116.68

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Solution

The fourth proportional to 1,862.86, 2,570.57 and 1,116.68 is: 1,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.86 : 2,570.57 = 1,116.68 : x
  2. Step 2: Convert to fraction form
    1,862.86/2,570.57 = 1,116.68/x
  3. Step 3: Cross multiply
    1,862.86x = 2,570.57 × 1,116.68
  4. Step 4: Simplify right side
    1,862.86x = 2,870,504.11
  5. Step 5: Solve for x
    x = 2,870,504.11/1,862.86
  6. Step 6: Final answer
    x = 1,540.91

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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.