Home / 2,078.63-2,868.51-1,147.13

Finding the Fourth Proportional to 2,078.63, 2,868.51 and 1,147.13

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Solution

The fourth proportional to 2,078.63, 2,868.51 and 1,147.13 is: 1,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.63 : 2,868.51 = 1,147.13 : x
  2. Step 2: Convert to fraction form
    2,078.63/2,868.51 = 1,147.13/x
  3. Step 3: Cross multiply
    2,078.63x = 2,868.51 × 1,147.13
  4. Step 4: Simplify right side
    2,078.63x = 3,290,539.53
  5. Step 5: Solve for x
    x = 3,290,539.53/2,078.63
  6. Step 6: Final answer
    x = 1,583.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.