Home / 6,447.99-8,898.07-3,615.49

Finding the Fourth Proportional to 6,447.99, 8,898.07 and 3,615.49

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Solution

The fourth proportional to 6,447.99, 8,898.07 and 3,615.49 is: 4,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.99 : 8,898.07 = 3,615.49 : x
  2. Step 2: Convert to fraction form
    6,447.99/8,898.07 = 3,615.49/x
  3. Step 3: Cross multiply
    6,447.99x = 8,898.07 × 3,615.49
  4. Step 4: Simplify right side
    6,447.99x = 32,170,883.10
  5. Step 5: Solve for x
    x = 32,170,883.10/6,447.99
  6. Step 6: Final answer
    x = 4,989.29

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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.