Home / 1,939.48-2,675.60-1,153.08

Finding the Fourth Proportional to 1,939.48, 2,675.60 and 1,153.08

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Solution

The fourth proportional to 1,939.48, 2,675.60 and 1,153.08 is: 1,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.48 : 2,675.60 = 1,153.08 : x
  2. Step 2: Convert to fraction form
    1,939.48/2,675.60 = 1,153.08/x
  3. Step 3: Cross multiply
    1,939.48x = 2,675.60 × 1,153.08
  4. Step 4: Simplify right side
    1,939.48x = 3,085,180.85
  5. Step 5: Solve for x
    x = 3,085,180.85/1,939.48
  6. Step 6: Final answer
    x = 1,590.73

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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.