Home / 4,880.46-7,320.72-3,712.88

Finding the Fourth Proportional to 4,880.46, 7,320.72 and 3,712.88

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Solution

The fourth proportional to 4,880.46, 7,320.72 and 3,712.88 is: 5,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.46 : 7,320.72 = 3,712.88 : x
  2. Step 2: Convert to fraction form
    4,880.46/7,320.72 = 3,712.88/x
  3. Step 3: Cross multiply
    4,880.46x = 7,320.72 × 3,712.88
  4. Step 4: Simplify right side
    4,880.46x = 27,180,954.87
  5. Step 5: Solve for x
    x = 27,180,954.87/4,880.46
  6. Step 6: Final answer
    x = 5,569.34

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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.