Home / 4,688.76-7,028.25-2,220.64

Finding the Fourth Proportional to 4,688.76, 7,028.25 and 2,220.64

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Solution

The fourth proportional to 4,688.76, 7,028.25 and 2,220.64 is: 3,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.76 : 7,028.25 = 2,220.64 : x
  2. Step 2: Convert to fraction form
    4,688.76/7,028.25 = 2,220.64/x
  3. Step 3: Cross multiply
    4,688.76x = 7,028.25 × 2,220.64
  4. Step 4: Simplify right side
    4,688.76x = 15,607,213.08
  5. Step 5: Solve for x
    x = 15,607,213.08/4,688.76
  6. Step 6: Final answer
    x = 3,328.64

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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.