Home / 1,938.36-2,673.99-1,151.85

Finding the Fourth Proportional to 1,938.36, 2,673.99 and 1,151.85

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Solution

The fourth proportional to 1,938.36, 2,673.99 and 1,151.85 is: 1,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.36 : 2,673.99 = 1,151.85 : x
  2. Step 2: Convert to fraction form
    1,938.36/2,673.99 = 1,151.85/x
  3. Step 3: Cross multiply
    1,938.36x = 2,673.99 × 1,151.85
  4. Step 4: Simplify right side
    1,938.36x = 3,080,031.58
  5. Step 5: Solve for x
    x = 3,080,031.58/1,938.36
  6. Step 6: Final answer
    x = 1,588.99

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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.