Home / 1,511.45-2,267.23-415.81

Finding the Fourth Proportional to 1,511.45, 2,267.23 and 415.81

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Solution

The fourth proportional to 1,511.45, 2,267.23 and 415.81 is: 623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.45 : 2,267.23 = 415.81 : x
  2. Step 2: Convert to fraction form
    1,511.45/2,267.23 = 415.81/x
  3. Step 3: Cross multiply
    1,511.45x = 2,267.23 × 415.81
  4. Step 4: Simplify right side
    1,511.45x = 942,736.91
  5. Step 5: Solve for x
    x = 942,736.91/1,511.45
  6. Step 6: Final answer
    x = 623.73

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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.