Home / 4,085.47-6,126.68-1,311.42

Finding the Fourth Proportional to 4,085.47, 6,126.68 and 1,311.42

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Solution

The fourth proportional to 4,085.47, 6,126.68 and 1,311.42 is: 1,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.47 : 6,126.68 = 1,311.42 : x
  2. Step 2: Convert to fraction form
    4,085.47/6,126.68 = 1,311.42/x
  3. Step 3: Cross multiply
    4,085.47x = 6,126.68 × 1,311.42
  4. Step 4: Simplify right side
    4,085.47x = 8,034,650.69
  5. Step 5: Solve for x
    x = 8,034,650.69/4,085.47
  6. Step 6: Final answer
    x = 1,966.64

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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.