Home / 4,855.50-7,284.47-1,392.75

Finding the Fourth Proportional to 4,855.50, 7,284.47 and 1,392.75

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Solution

The fourth proportional to 4,855.50, 7,284.47 and 1,392.75 is: 2,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.50 : 7,284.47 = 1,392.75 : x
  2. Step 2: Convert to fraction form
    4,855.50/7,284.47 = 1,392.75/x
  3. Step 3: Cross multiply
    4,855.50x = 7,284.47 × 1,392.75
  4. Step 4: Simplify right side
    4,855.50x = 10,145,445.59
  5. Step 5: Solve for x
    x = 10,145,445.59/4,855.50
  6. Step 6: Final answer
    x = 2,089.47

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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.