Home / 2,035.77-2,808.68-1,289.62

Finding the Fourth Proportional to 2,035.77, 2,808.68 and 1,289.62

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Solution

The fourth proportional to 2,035.77, 2,808.68 and 1,289.62 is: 1,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,035.77 : 2,808.68 = 1,289.62 : x
  2. Step 2: Convert to fraction form
    2,035.77/2,808.68 = 1,289.62/x
  3. Step 3: Cross multiply
    2,035.77x = 2,808.68 × 1,289.62
  4. Step 4: Simplify right side
    2,035.77x = 3,622,126.96
  5. Step 5: Solve for x
    x = 3,622,126.96/2,035.77
  6. Step 6: Final answer
    x = 1,779.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.