Home / 4,639.20-6,402.12-2,543.28

Finding the Fourth Proportional to 4,639.20, 6,402.12 and 2,543.28

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Solution

The fourth proportional to 4,639.20, 6,402.12 and 2,543.28 is: 3,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.20 : 6,402.12 = 2,543.28 : x
  2. Step 2: Convert to fraction form
    4,639.20/6,402.12 = 2,543.28/x
  3. Step 3: Cross multiply
    4,639.20x = 6,402.12 × 2,543.28
  4. Step 4: Simplify right side
    4,639.20x = 16,282,383.75
  5. Step 5: Solve for x
    x = 16,282,383.75/4,639.20
  6. Step 6: Final answer
    x = 3,509.74

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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.