Home / 2,841.12-4,261.56-1,686

Finding the Fourth Proportional to 2,841.12, 4,261.56 and 1,686

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Solution

The fourth proportional to 2,841.12, 4,261.56 and 1,686 is: 2,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.12 : 4,261.56 = 1,686 : x
  2. Step 2: Convert to fraction form
    2,841.12/4,261.56 = 1,686/x
  3. Step 3: Cross multiply
    2,841.12x = 4,261.56 × 1,686
  4. Step 4: Simplify right side
    2,841.12x = 7,184,990.16
  5. Step 5: Solve for x
    x = 7,184,990.16/2,841.12
  6. Step 6: Final answer
    x = 2,528.93

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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.