Home / 3,518.12-5,279.76-1,571.60

Finding the Fourth Proportional to 3,518.12, 5,279.76 and 1,571.60

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Solution

The fourth proportional to 3,518.12, 5,279.76 and 1,571.60 is: 2,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.12 : 5,279.76 = 1,571.60 : x
  2. Step 2: Convert to fraction form
    3,518.12/5,279.76 = 1,571.60/x
  3. Step 3: Cross multiply
    3,518.12x = 5,279.76 × 1,571.60
  4. Step 4: Simplify right side
    3,518.12x = 8,297,670.82
  5. Step 5: Solve for x
    x = 8,297,670.82/3,518.12
  6. Step 6: Final answer
    x = 2,358.55

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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.