Home / 1,715.12-2,576.78-1,100.03

Finding the Fourth Proportional to 1,715.12, 2,576.78 and 1,100.03

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Solution

The fourth proportional to 1,715.12, 2,576.78 and 1,100.03 is: 1,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.12 : 2,576.78 = 1,100.03 : x
  2. Step 2: Convert to fraction form
    1,715.12/2,576.78 = 1,100.03/x
  3. Step 3: Cross multiply
    1,715.12x = 2,576.78 × 1,100.03
  4. Step 4: Simplify right side
    1,715.12x = 2,834,516.92
  5. Step 5: Solve for x
    x = 2,834,516.92/1,715.12
  6. Step 6: Final answer
    x = 1,652.67

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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.