Home / 4,880.56-6,734.28-2,891.20

Finding the Fourth Proportional to 4,880.56, 6,734.28 and 2,891.20

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Solution

The fourth proportional to 4,880.56, 6,734.28 and 2,891.20 is: 3,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.56 : 6,734.28 = 2,891.20 : x
  2. Step 2: Convert to fraction form
    4,880.56/6,734.28 = 2,891.20/x
  3. Step 3: Cross multiply
    4,880.56x = 6,734.28 × 2,891.20
  4. Step 4: Simplify right side
    4,880.56x = 19,470,150.34
  5. Step 5: Solve for x
    x = 19,470,150.34/4,880.56
  6. Step 6: Final answer
    x = 3,989.33

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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.