Home / 1,840.39-2,754.41-1,688.65

Finding the Fourth Proportional to 1,840.39, 2,754.41 and 1,688.65

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Solution

The fourth proportional to 1,840.39, 2,754.41 and 1,688.65 is: 2,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.39 : 2,754.41 = 1,688.65 : x
  2. Step 2: Convert to fraction form
    1,840.39/2,754.41 = 1,688.65/x
  3. Step 3: Cross multiply
    1,840.39x = 2,754.41 × 1,688.65
  4. Step 4: Simplify right side
    1,840.39x = 4,651,219.12
  5. Step 5: Solve for x
    x = 4,651,219.12/1,840.39
  6. Step 6: Final answer
    x = 2,527.30

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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.