Home / 2,690.02-4,033.47-1,228.39

Finding the Fourth Proportional to 2,690.02, 4,033.47 and 1,228.39

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Solution

The fourth proportional to 2,690.02, 4,033.47 and 1,228.39 is: 1,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.02 : 4,033.47 = 1,228.39 : x
  2. Step 2: Convert to fraction form
    2,690.02/4,033.47 = 1,228.39/x
  3. Step 3: Cross multiply
    2,690.02x = 4,033.47 × 1,228.39
  4. Step 4: Simplify right side
    2,690.02x = 4,954,674.21
  5. Step 5: Solve for x
    x = 4,954,674.21/2,690.02
  6. Step 6: Final answer
    x = 1,841.87

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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.