Home / 1,618.16-2,228.10-1,265.54

Finding the Fourth Proportional to 1,618.16, 2,228.10 and 1,265.54

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Solution

The fourth proportional to 1,618.16, 2,228.10 and 1,265.54 is: 1,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.16 : 2,228.10 = 1,265.54 : x
  2. Step 2: Convert to fraction form
    1,618.16/2,228.10 = 1,265.54/x
  3. Step 3: Cross multiply
    1,618.16x = 2,228.10 × 1,265.54
  4. Step 4: Simplify right side
    1,618.16x = 2,819,749.67
  5. Step 5: Solve for x
    x = 2,819,749.67/1,618.16
  6. Step 6: Final answer
    x = 1,742.57

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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.