Home / 4,855.24-7,281.60-1,391.68

Finding the Fourth Proportional to 4,855.24, 7,281.60 and 1,391.68

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Solution

The fourth proportional to 4,855.24, 7,281.60 and 1,391.68 is: 2,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.24 : 7,281.60 = 1,391.68 : x
  2. Step 2: Convert to fraction form
    4,855.24/7,281.60 = 1,391.68/x
  3. Step 3: Cross multiply
    4,855.24x = 7,281.60 × 1,391.68
  4. Step 4: Simplify right side
    4,855.24x = 10,133,657.09
  5. Step 5: Solve for x
    x = 10,133,657.09/4,855.24
  6. Step 6: Final answer
    x = 2,087.16

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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.