Home / 1,818.63-2,731.02-1,119.93

Finding the Fourth Proportional to 1,818.63, 2,731.02 and 1,119.93

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Solution

The fourth proportional to 1,818.63, 2,731.02 and 1,119.93 is: 1,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.63 : 2,731.02 = 1,119.93 : x
  2. Step 2: Convert to fraction form
    1,818.63/2,731.02 = 1,119.93/x
  3. Step 3: Cross multiply
    1,818.63x = 2,731.02 × 1,119.93
  4. Step 4: Simplify right side
    1,818.63x = 3,058,551.23
  5. Step 5: Solve for x
    x = 3,058,551.23/1,818.63
  6. Step 6: Final answer
    x = 1,681.79

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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.