Home / 6,423.98-8,864.93-3,906.17

Finding the Fourth Proportional to 6,423.98, 8,864.93 and 3,906.17

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Solution

The fourth proportional to 6,423.98, 8,864.93 and 3,906.17 is: 5,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.98 : 8,864.93 = 3,906.17 : x
  2. Step 2: Convert to fraction form
    6,423.98/8,864.93 = 3,906.17/x
  3. Step 3: Cross multiply
    6,423.98x = 8,864.93 × 3,906.17
  4. Step 4: Simplify right side
    6,423.98x = 34,627,889.06
  5. Step 5: Solve for x
    x = 34,627,889.06/6,423.98
  6. Step 6: Final answer
    x = 5,390.41

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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.