Home / 6,421.16-8,861.25-3,626.66

Finding the Fourth Proportional to 6,421.16, 8,861.25 and 3,626.66

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Solution

The fourth proportional to 6,421.16, 8,861.25 and 3,626.66 is: 5,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.16 : 8,861.25 = 3,626.66 : x
  2. Step 2: Convert to fraction form
    6,421.16/8,861.25 = 3,626.66/x
  3. Step 3: Cross multiply
    6,421.16x = 8,861.25 × 3,626.66
  4. Step 4: Simplify right side
    6,421.16x = 32,136,740.93
  5. Step 5: Solve for x
    x = 32,136,740.93/6,421.16
  6. Step 6: Final answer
    x = 5,004.82

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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.