Home / 6,281.20-8,668.14-3,486.70

Finding the Fourth Proportional to 6,281.20, 8,668.14 and 3,486.70

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Solution

The fourth proportional to 6,281.20, 8,668.14 and 3,486.70 is: 4,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.20 : 8,668.14 = 3,486.70 : x
  2. Step 2: Convert to fraction form
    6,281.20/8,668.14 = 3,486.70/x
  3. Step 3: Cross multiply
    6,281.20x = 8,668.14 × 3,486.70
  4. Step 4: Simplify right side
    6,281.20x = 30,223,203.74
  5. Step 5: Solve for x
    x = 30,223,203.74/6,281.20
  6. Step 6: Final answer
    x = 4,811.69

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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.