Home / 1,938.24-2,675.14-1,098.92

Finding the Fourth Proportional to 1,938.24, 2,675.14 and 1,098.92

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Solution

The fourth proportional to 1,938.24, 2,675.14 and 1,098.92 is: 1,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.24 : 2,675.14 = 1,098.92 : x
  2. Step 2: Convert to fraction form
    1,938.24/2,675.14 = 1,098.92/x
  3. Step 3: Cross multiply
    1,938.24x = 2,675.14 × 1,098.92
  4. Step 4: Simplify right side
    1,938.24x = 2,939,764.85
  5. Step 5: Solve for x
    x = 2,939,764.85/1,938.24
  6. Step 6: Final answer
    x = 1,516.72

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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.