Home / 2,558.40-3,524.88-2,113.92

Finding the Fourth Proportional to 2,558.40, 3,524.88 and 2,113.92

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Solution

The fourth proportional to 2,558.40, 3,524.88 and 2,113.92 is: 2,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.40 : 3,524.88 = 2,113.92 : x
  2. Step 2: Convert to fraction form
    2,558.40/3,524.88 = 2,113.92/x
  3. Step 3: Cross multiply
    2,558.40x = 3,524.88 × 2,113.92
  4. Step 4: Simplify right side
    2,558.40x = 7,451,314.33
  5. Step 5: Solve for x
    x = 7,451,314.33/2,558.40
  6. Step 6: Final answer
    x = 2,912.49

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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.