Home / 2,618.58-3,613.66-1,439.67

Finding the Fourth Proportional to 2,618.58, 3,613.66 and 1,439.67

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Solution

The fourth proportional to 2,618.58, 3,613.66 and 1,439.67 is: 1,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.58 : 3,613.66 = 1,439.67 : x
  2. Step 2: Convert to fraction form
    2,618.58/3,613.66 = 1,439.67/x
  3. Step 3: Cross multiply
    2,618.58x = 3,613.66 × 1,439.67
  4. Step 4: Simplify right side
    2,618.58x = 5,202,495.94
  5. Step 5: Solve for x
    x = 5,202,495.94/2,618.58
  6. Step 6: Final answer
    x = 1,986.76

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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.