Home / 1,938.69-2,674.80-1,099.35

Finding the Fourth Proportional to 1,938.69, 2,674.80 and 1,099.35

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Solution

The fourth proportional to 1,938.69, 2,674.80 and 1,099.35 is: 1,516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.69 : 2,674.80 = 1,099.35 : x
  2. Step 2: Convert to fraction form
    1,938.69/2,674.80 = 1,099.35/x
  3. Step 3: Cross multiply
    1,938.69x = 2,674.80 × 1,099.35
  4. Step 4: Simplify right side
    1,938.69x = 2,940,541.38
  5. Step 5: Solve for x
    x = 2,940,541.38/1,938.69
  6. Step 6: Final answer
    x = 1,516.77

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1.5x scale

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.