Home / 6,131.85-8,461.70-3,479.21

Finding the Fourth Proportional to 6,131.85, 8,461.70 and 3,479.21

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Solution

The fourth proportional to 6,131.85, 8,461.70 and 3,479.21 is: 4,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.85 : 8,461.70 = 3,479.21 : x
  2. Step 2: Convert to fraction form
    6,131.85/8,461.70 = 3,479.21/x
  3. Step 3: Cross multiply
    6,131.85x = 8,461.70 × 3,479.21
  4. Step 4: Simplify right side
    6,131.85x = 29,439,971.55
  5. Step 5: Solve for x
    x = 29,439,971.55/6,131.85
  6. Step 6: Final answer
    x = 4,801.16

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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.