Home / 2,686.93-4,030.68-1,226.50

Finding the Fourth Proportional to 2,686.93, 4,030.68 and 1,226.50

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Solution

The fourth proportional to 2,686.93, 4,030.68 and 1,226.50 is: 1,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.93 : 4,030.68 = 1,226.50 : x
  2. Step 2: Convert to fraction form
    2,686.93/4,030.68 = 1,226.50/x
  3. Step 3: Cross multiply
    2,686.93x = 4,030.68 × 1,226.50
  4. Step 4: Simplify right side
    2,686.93x = 4,943,629.02
  5. Step 5: Solve for x
    x = 4,943,629.02/2,686.93
  6. Step 6: Final answer
    x = 1,839.88

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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.