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Finding the Fourth Proportional to 4,455.76, 6,145.22 and 3,339.32

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Solution

The fourth proportional to 4,455.76, 6,145.22 and 3,339.32 is: 4,605.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.76 : 6,145.22 = 3,339.32 : x
  2. Step 2: Convert to fraction form
    4,455.76/6,145.22 = 3,339.32/x
  3. Step 3: Cross multiply
    4,455.76x = 6,145.22 × 3,339.32
  4. Step 4: Simplify right side
    4,455.76x = 20,520,856.05
  5. Step 5: Solve for x
    x = 20,520,856.05/4,455.76
  6. Step 6: Final answer
    x = 4,605.47

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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.