Home / 1,808.23-2,713.88-1,289.50

Finding the Fourth Proportional to 1,808.23, 2,713.88 and 1,289.50

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Solution

The fourth proportional to 1,808.23, 2,713.88 and 1,289.50 is: 1,935.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.23 : 2,713.88 = 1,289.50 : x
  2. Step 2: Convert to fraction form
    1,808.23/2,713.88 = 1,289.50/x
  3. Step 3: Cross multiply
    1,808.23x = 2,713.88 × 1,289.50
  4. Step 4: Simplify right side
    1,808.23x = 3,499,528.24
  5. Step 5: Solve for x
    x = 3,499,528.24/1,808.23
  6. Step 6: Final answer
    x = 1,935.34

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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.