Home / 4,639.32-6,403.14-2,871.72

Finding the Fourth Proportional to 4,639.32, 6,403.14 and 2,871.72

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Solution

The fourth proportional to 4,639.32, 6,403.14 and 2,871.72 is: 3,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.32 : 6,403.14 = 2,871.72 : x
  2. Step 2: Convert to fraction form
    4,639.32/6,403.14 = 2,871.72/x
  3. Step 3: Cross multiply
    4,639.32x = 6,403.14 × 2,871.72
  4. Step 4: Simplify right side
    4,639.32x = 18,388,025.20
  5. Step 5: Solve for x
    x = 18,388,025.20/4,639.32
  6. Step 6: Final answer
    x = 3,963.52

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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.