Home / 1,418.87-2,128.26-1,000.67

Finding the Fourth Proportional to 1,418.87, 2,128.26 and 1,000.67

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Solution

The fourth proportional to 1,418.87, 2,128.26 and 1,000.67 is: 1,500.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.87 : 2,128.26 = 1,000.67 : x
  2. Step 2: Convert to fraction form
    1,418.87/2,128.26 = 1,000.67/x
  3. Step 3: Cross multiply
    1,418.87x = 2,128.26 × 1,000.67
  4. Step 4: Simplify right side
    1,418.87x = 2,129,675.29
  5. Step 5: Solve for x
    x = 2,129,675.29/1,418.87
  6. Step 6: Final answer
    x = 1,500.97

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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.