Home / 2,836.18-3,914.16-1,985.53

Finding the Fourth Proportional to 2,836.18, 3,914.16 and 1,985.53

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Solution

The fourth proportional to 2,836.18, 3,914.16 and 1,985.53 is: 2,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.18 : 3,914.16 = 1,985.53 : x
  2. Step 2: Convert to fraction form
    2,836.18/3,914.16 = 1,985.53/x
  3. Step 3: Cross multiply
    2,836.18x = 3,914.16 × 1,985.53
  4. Step 4: Simplify right side
    2,836.18x = 7,771,657.57
  5. Step 5: Solve for x
    x = 7,771,657.57/2,836.18
  6. Step 6: Final answer
    x = 2,740.19

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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.