Home / 4,639.34-6,398.55-4,078.61

Finding the Fourth Proportional to 4,639.34, 6,398.55 and 4,078.61

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Solution

The fourth proportional to 4,639.34, 6,398.55 and 4,078.61 is: 5,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.34 : 6,398.55 = 4,078.61 : x
  2. Step 2: Convert to fraction form
    4,639.34/6,398.55 = 4,078.61/x
  3. Step 3: Cross multiply
    4,639.34x = 6,398.55 × 4,078.61
  4. Step 4: Simplify right side
    4,639.34x = 26,097,158.02
  5. Step 5: Solve for x
    x = 26,097,158.02/4,639.34
  6. Step 6: Final answer
    x = 5,625.19

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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.