Home / 6,408.40-8,842.08-3,613.36

Finding the Fourth Proportional to 6,408.40, 8,842.08 and 3,613.36

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Solution

The fourth proportional to 6,408.40, 8,842.08 and 3,613.36 is: 4,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.40 : 8,842.08 = 3,613.36 : x
  2. Step 2: Convert to fraction form
    6,408.40/8,842.08 = 3,613.36/x
  3. Step 3: Cross multiply
    6,408.40x = 8,842.08 × 3,613.36
  4. Step 4: Simplify right side
    6,408.40x = 31,949,618.19
  5. Step 5: Solve for x
    x = 31,949,618.19/6,408.40
  6. Step 6: Final answer
    x = 4,985.58

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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.