Home / 6,447.32-8,898.01-3,615.15

Finding the Fourth Proportional to 6,447.32, 8,898.01 and 3,615.15

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Solution

The fourth proportional to 6,447.32, 8,898.01 and 3,615.15 is: 4,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.32 : 8,898.01 = 3,615.15 : x
  2. Step 2: Convert to fraction form
    6,447.32/8,898.01 = 3,615.15/x
  3. Step 3: Cross multiply
    6,447.32x = 8,898.01 × 3,615.15
  4. Step 4: Simplify right side
    6,447.32x = 32,167,640.85
  5. Step 5: Solve for x
    x = 32,167,640.85/6,447.32
  6. Step 6: Final answer
    x = 4,989.30

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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.