Home / 4,085.39-6,126.74-1,311.40

Finding the Fourth Proportional to 4,085.39, 6,126.74 and 1,311.40

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Solution

The fourth proportional to 4,085.39, 6,126.74 and 1,311.40 is: 1,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.39 : 6,126.74 = 1,311.40 : x
  2. Step 2: Convert to fraction form
    4,085.39/6,126.74 = 1,311.40/x
  3. Step 3: Cross multiply
    4,085.39x = 6,126.74 × 1,311.40
  4. Step 4: Simplify right side
    4,085.39x = 8,034,612.86
  5. Step 5: Solve for x
    x = 8,034,612.86/4,085.39
  6. Step 6: Final answer
    x = 1,966.67

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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.