Home / 6,638.90-9,165.47-4,403.84

Finding the Fourth Proportional to 6,638.90, 9,165.47 and 4,403.84

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Solution

The fourth proportional to 6,638.90, 9,165.47 and 4,403.84 is: 6,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.90 : 9,165.47 = 4,403.84 : x
  2. Step 2: Convert to fraction form
    6,638.90/9,165.47 = 4,403.84/x
  3. Step 3: Cross multiply
    6,638.90x = 9,165.47 × 4,403.84
  4. Step 4: Simplify right side
    6,638.90x = 40,363,195.56
  5. Step 5: Solve for x
    x = 40,363,195.56/6,638.90
  6. Step 6: Final answer
    x = 6,079.81

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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.