Home / 3,126.55-4,689.52-1,277.83

Finding the Fourth Proportional to 3,126.55, 4,689.52 and 1,277.83

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Solution

The fourth proportional to 3,126.55, 4,689.52 and 1,277.83 is: 1,916.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.55 : 4,689.52 = 1,277.83 : x
  2. Step 2: Convert to fraction form
    3,126.55/4,689.52 = 1,277.83/x
  3. Step 3: Cross multiply
    3,126.55x = 4,689.52 × 1,277.83
  4. Step 4: Simplify right side
    3,126.55x = 5,992,409.34
  5. Step 5: Solve for x
    x = 5,992,409.34/3,126.55
  6. Step 6: Final answer
    x = 1,916.62

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1.5x scale

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.