Home / 4,086.64-5,638.98-2,515.24

Finding the Fourth Proportional to 4,086.64, 5,638.98 and 2,515.24

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Solution

The fourth proportional to 4,086.64, 5,638.98 and 2,515.24 is: 3,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.64 : 5,638.98 = 2,515.24 : x
  2. Step 2: Convert to fraction form
    4,086.64/5,638.98 = 2,515.24/x
  3. Step 3: Cross multiply
    4,086.64x = 5,638.98 × 2,515.24
  4. Step 4: Simplify right side
    4,086.64x = 14,183,388.06
  5. Step 5: Solve for x
    x = 14,183,388.06/4,086.64
  6. Step 6: Final answer
    x = 3,470.67

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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.