Home / 2,685.53-4,011.87-2,588.33

Finding the Fourth Proportional to 2,685.53, 4,011.87 and 2,588.33

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Solution

The fourth proportional to 2,685.53, 4,011.87 and 2,588.33 is: 3,866.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.53 : 4,011.87 = 2,588.33 : x
  2. Step 2: Convert to fraction form
    2,685.53/4,011.87 = 2,588.33/x
  3. Step 3: Cross multiply
    2,685.53x = 4,011.87 × 2,588.33
  4. Step 4: Simplify right side
    2,685.53x = 10,384,063.21
  5. Step 5: Solve for x
    x = 10,384,063.21/2,685.53
  6. Step 6: Final answer
    x = 3,866.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.