Home / 6,421.48-8,861.60-3,626.96

Finding the Fourth Proportional to 6,421.48, 8,861.60 and 3,626.96

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Solution

The fourth proportional to 6,421.48, 8,861.60 and 3,626.96 is: 5,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.48 : 8,861.60 = 3,626.96 : x
  2. Step 2: Convert to fraction form
    6,421.48/8,861.60 = 3,626.96/x
  3. Step 3: Cross multiply
    6,421.48x = 8,861.60 × 3,626.96
  4. Step 4: Simplify right side
    6,421.48x = 32,140,668.74
  5. Step 5: Solve for x
    x = 32,140,668.74/6,421.48
  6. Step 6: Final answer
    x = 5,005.18

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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.