Home / 2,876.55-4,312.77-1,394.18

Finding the Fourth Proportional to 2,876.55, 4,312.77 and 1,394.18

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Solution

The fourth proportional to 2,876.55, 4,312.77 and 1,394.18 is: 2,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.55 : 4,312.77 = 1,394.18 : x
  2. Step 2: Convert to fraction form
    2,876.55/4,312.77 = 1,394.18/x
  3. Step 3: Cross multiply
    2,876.55x = 4,312.77 × 1,394.18
  4. Step 4: Simplify right side
    2,876.55x = 6,012,777.68
  5. Step 5: Solve for x
    x = 6,012,777.68/2,876.55
  6. Step 6: Final answer
    x = 2,090.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.