Home / 1,277.43-1,760.58-1,099.93

Finding the Fourth Proportional to 1,277.43, 1,760.58 and 1,099.93

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Solution

The fourth proportional to 1,277.43, 1,760.58 and 1,099.93 is: 1,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.43 : 1,760.58 = 1,099.93 : x
  2. Step 2: Convert to fraction form
    1,277.43/1,760.58 = 1,099.93/x
  3. Step 3: Cross multiply
    1,277.43x = 1,760.58 × 1,099.93
  4. Step 4: Simplify right side
    1,277.43x = 1,936,514.76
  5. Step 5: Solve for x
    x = 1,936,514.76/1,277.43
  6. Step 6: Final answer
    x = 1,515.95

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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.