Home / 4,770.28-6,580.86-2,880.79

Finding the Fourth Proportional to 4,770.28, 6,580.86 and 2,880.79

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Solution

The fourth proportional to 4,770.28, 6,580.86 and 2,880.79 is: 3,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.28 : 6,580.86 = 2,880.79 : x
  2. Step 2: Convert to fraction form
    4,770.28/6,580.86 = 2,880.79/x
  3. Step 3: Cross multiply
    4,770.28x = 6,580.86 × 2,880.79
  4. Step 4: Simplify right side
    4,770.28x = 18,958,075.68
  5. Step 5: Solve for x
    x = 18,958,075.68/4,770.28
  6. Step 6: Final answer
    x = 3,974.21

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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.