Home / 1,817.02-2,718.24-1,238.68

Finding the Fourth Proportional to 1,817.02, 2,718.24 and 1,238.68

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Solution

The fourth proportional to 1,817.02, 2,718.24 and 1,238.68 is: 1,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.02 : 2,718.24 = 1,238.68 : x
  2. Step 2: Convert to fraction form
    1,817.02/2,718.24 = 1,238.68/x
  3. Step 3: Cross multiply
    1,817.02x = 2,718.24 × 1,238.68
  4. Step 4: Simplify right side
    1,817.02x = 3,367,029.52
  5. Step 5: Solve for x
    x = 3,367,029.52/1,817.02
  6. Step 6: Final answer
    x = 1,853.05

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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.