Home / 4,880.75-7,322.21-2,688.35

Finding the Fourth Proportional to 4,880.75, 7,322.21 and 2,688.35

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Solution

The fourth proportional to 4,880.75, 7,322.21 and 2,688.35 is: 4,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.75 : 7,322.21 = 2,688.35 : x
  2. Step 2: Convert to fraction form
    4,880.75/7,322.21 = 2,688.35/x
  3. Step 3: Cross multiply
    4,880.75x = 7,322.21 × 2,688.35
  4. Step 4: Simplify right side
    4,880.75x = 19,684,663.25
  5. Step 5: Solve for x
    x = 19,684,663.25/4,880.75
  6. Step 6: Final answer
    x = 4,033.12

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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.