Home / 1,931.85-2,667.84-1,650.44

Finding the Fourth Proportional to 1,931.85, 2,667.84 and 1,650.44

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Solution

The fourth proportional to 1,931.85, 2,667.84 and 1,650.44 is: 2,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.85 : 2,667.84 = 1,650.44 : x
  2. Step 2: Convert to fraction form
    1,931.85/2,667.84 = 1,650.44/x
  3. Step 3: Cross multiply
    1,931.85x = 2,667.84 × 1,650.44
  4. Step 4: Simplify right side
    1,931.85x = 4,403,110.33
  5. Step 5: Solve for x
    x = 4,403,110.33/1,931.85
  6. Step 6: Final answer
    x = 2,279.22

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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.