Home / 2,528.45-3,790.18-1,210.68

Finding the Fourth Proportional to 2,528.45, 3,790.18 and 1,210.68

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Solution

The fourth proportional to 2,528.45, 3,790.18 and 1,210.68 is: 1,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.45 : 3,790.18 = 1,210.68 : x
  2. Step 2: Convert to fraction form
    2,528.45/3,790.18 = 1,210.68/x
  3. Step 3: Cross multiply
    2,528.45x = 3,790.18 × 1,210.68
  4. Step 4: Simplify right side
    2,528.45x = 4,588,692.10
  5. Step 5: Solve for x
    x = 4,588,692.10/2,528.45
  6. Step 6: Final answer
    x = 1,814.83

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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.