Home / 4,515.36-6,768.78-1,591.80

Finding the Fourth Proportional to 4,515.36, 6,768.78 and 1,591.80

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Solution

The fourth proportional to 4,515.36, 6,768.78 and 1,591.80 is: 2,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,515.36 : 6,768.78 = 1,591.80 : x
  2. Step 2: Convert to fraction form
    4,515.36/6,768.78 = 1,591.80/x
  3. Step 3: Cross multiply
    4,515.36x = 6,768.78 × 1,591.80
  4. Step 4: Simplify right side
    4,515.36x = 10,774,544.00
  5. Step 5: Solve for x
    x = 10,774,544.00/4,515.36
  6. Step 6: Final answer
    x = 2,386.20

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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.