Home / 6,429.36-9,636.10-3,658.32

Finding the Fourth Proportional to 6,429.36, 9,636.10 and 3,658.32

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Solution

The fourth proportional to 6,429.36, 9,636.10 and 3,658.32 is: 5,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.36 : 9,636.10 = 3,658.32 : x
  2. Step 2: Convert to fraction form
    6,429.36/9,636.10 = 3,658.32/x
  3. Step 3: Cross multiply
    6,429.36x = 9,636.10 × 3,658.32
  4. Step 4: Simplify right side
    6,429.36x = 35,251,937.35
  5. Step 5: Solve for x
    x = 35,251,937.35/6,429.36
  6. Step 6: Final answer
    x = 5,482.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.