Home / 3,085.57-4,624.39-1,328.55

Finding the Fourth Proportional to 3,085.57, 4,624.39 and 1,328.55

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Solution

The fourth proportional to 3,085.57, 4,624.39 and 1,328.55 is: 1,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.57 : 4,624.39 = 1,328.55 : x
  2. Step 2: Convert to fraction form
    3,085.57/4,624.39 = 1,328.55/x
  3. Step 3: Cross multiply
    3,085.57x = 4,624.39 × 1,328.55
  4. Step 4: Simplify right side
    3,085.57x = 6,143,733.33
  5. Step 5: Solve for x
    x = 6,143,733.33/3,085.57
  6. Step 6: Final answer
    x = 1,991.12

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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.