Home / 4,647.32-6,409.58-4,086.64

Finding the Fourth Proportional to 4,647.32, 6,409.58 and 4,086.64

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Solution

The fourth proportional to 4,647.32, 6,409.58 and 4,086.64 is: 5,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.32 : 6,409.58 = 4,086.64 : x
  2. Step 2: Convert to fraction form
    4,647.32/6,409.58 = 4,086.64/x
  3. Step 3: Cross multiply
    4,647.32x = 6,409.58 × 4,086.64
  4. Step 4: Simplify right side
    4,647.32x = 26,193,646.01
  5. Step 5: Solve for x
    x = 26,193,646.01/4,647.32
  6. Step 6: Final answer
    x = 5,636.29

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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.