Home / 2,126.75-3,190.32-587.75

Finding the Fourth Proportional to 2,126.75, 3,190.32 and 587.75

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Solution

The fourth proportional to 2,126.75, 3,190.32 and 587.75 is: 881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.75 : 3,190.32 = 587.75 : x
  2. Step 2: Convert to fraction form
    2,126.75/3,190.32 = 587.75/x
  3. Step 3: Cross multiply
    2,126.75x = 3,190.32 × 587.75
  4. Step 4: Simplify right side
    2,126.75x = 1,875,110.58
  5. Step 5: Solve for x
    x = 1,875,110.58/2,126.75
  6. Step 6: Final answer
    x = 881.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.