Home / 1,836.84-2,740.38-1,686.32

Finding the Fourth Proportional to 1,836.84, 2,740.38 and 1,686.32

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Solution

The fourth proportional to 1,836.84, 2,740.38 and 1,686.32 is: 2,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.84 : 2,740.38 = 1,686.32 : x
  2. Step 2: Convert to fraction form
    1,836.84/2,740.38 = 1,686.32/x
  3. Step 3: Cross multiply
    1,836.84x = 2,740.38 × 1,686.32
  4. Step 4: Simplify right side
    1,836.84x = 4,621,157.60
  5. Step 5: Solve for x
    x = 4,621,157.60/1,836.84
  6. Step 6: Final answer
    x = 2,515.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.