Home / 6,318.50-8,720.58-3,668.10

Finding the Fourth Proportional to 6,318.50, 8,720.58 and 3,668.10

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Solution

The fourth proportional to 6,318.50, 8,720.58 and 3,668.10 is: 5,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.50 : 8,720.58 = 3,668.10 : x
  2. Step 2: Convert to fraction form
    6,318.50/8,720.58 = 3,668.10/x
  3. Step 3: Cross multiply
    6,318.50x = 8,720.58 × 3,668.10
  4. Step 4: Simplify right side
    6,318.50x = 31,987,959.50
  5. Step 5: Solve for x
    x = 31,987,959.50/6,318.50
  6. Step 6: Final answer
    x = 5,062.59

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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.