Home / 1,811.23-2,714.00-1,080.40

Finding the Fourth Proportional to 1,811.23, 2,714.00 and 1,080.40

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Solution

The fourth proportional to 1,811.23, 2,714.00 and 1,080.40 is: 1,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.23 : 2,714.00 = 1,080.40 : x
  2. Step 2: Convert to fraction form
    1,811.23/2,714.00 = 1,080.40/x
  3. Step 3: Cross multiply
    1,811.23x = 2,714.00 × 1,080.40
  4. Step 4: Simplify right side
    1,811.23x = 2,932,186.63
  5. Step 5: Solve for x
    x = 2,932,186.63/1,811.23
  6. Step 6: Final answer
    x = 1,618.90

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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.