Home / 2,587.85-3,571.25-1,408.94

Finding the Fourth Proportional to 2,587.85, 3,571.25 and 1,408.94

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Solution

The fourth proportional to 2,587.85, 3,571.25 and 1,408.94 is: 1,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.85 : 3,571.25 = 1,408.94 : x
  2. Step 2: Convert to fraction form
    2,587.85/3,571.25 = 1,408.94/x
  3. Step 3: Cross multiply
    2,587.85x = 3,571.25 × 1,408.94
  4. Step 4: Simplify right side
    2,587.85x = 5,031,659.12
  5. Step 5: Solve for x
    x = 5,031,659.12/2,587.85
  6. Step 6: Final answer
    x = 1,944.34

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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.