Home / 3,511.53-5,266.86-914.67

Finding the Fourth Proportional to 3,511.53, 5,266.86 and 914.67

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Solution

The fourth proportional to 3,511.53, 5,266.86 and 914.67 is: 1,371.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.53 : 5,266.86 = 914.67 : x
  2. Step 2: Convert to fraction form
    3,511.53/5,266.86 = 914.67/x
  3. Step 3: Cross multiply
    3,511.53x = 5,266.86 × 914.67
  4. Step 4: Simplify right side
    3,511.53x = 4,817,438.84
  5. Step 5: Solve for x
    x = 4,817,438.84/3,511.53
  6. Step 6: Final answer
    x = 1,371.89

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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.