Home / 1,699.27-2,343.67-1,228.93

Finding the Fourth Proportional to 1,699.27, 2,343.67 and 1,228.93

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Solution

The fourth proportional to 1,699.27, 2,343.67 and 1,228.93 is: 1,694.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.27 : 2,343.67 = 1,228.93 : x
  2. Step 2: Convert to fraction form
    1,699.27/2,343.67 = 1,228.93/x
  3. Step 3: Cross multiply
    1,699.27x = 2,343.67 × 1,228.93
  4. Step 4: Simplify right side
    1,699.27x = 2,880,206.37
  5. Step 5: Solve for x
    x = 2,880,206.37/1,699.27
  6. Step 6: Final answer
    x = 1,694.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.