Home / 4,272.64-6,409.60-3,116.80

Finding the Fourth Proportional to 4,272.64, 6,409.60 and 3,116.80

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Solution

The fourth proportional to 4,272.64, 6,409.60 and 3,116.80 is: 4,675.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.64 : 6,409.60 = 3,116.80 : x
  2. Step 2: Convert to fraction form
    4,272.64/6,409.60 = 3,116.80/x
  3. Step 3: Cross multiply
    4,272.64x = 6,409.60 × 3,116.80
  4. Step 4: Simplify right side
    4,272.64x = 19,977,441.28
  5. Step 5: Solve for x
    x = 19,977,441.28/4,272.64
  6. Step 6: Final answer
    x = 4,675.67

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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.