Home / 4,630.06-6,389.89-2,640.50

Finding the Fourth Proportional to 4,630.06, 6,389.89 and 2,640.50

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Solution

The fourth proportional to 4,630.06, 6,389.89 and 2,640.50 is: 3,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.06 : 6,389.89 = 2,640.50 : x
  2. Step 2: Convert to fraction form
    4,630.06/6,389.89 = 2,640.50/x
  3. Step 3: Cross multiply
    4,630.06x = 6,389.89 × 2,640.50
  4. Step 4: Simplify right side
    4,630.06x = 16,872,489.96
  5. Step 5: Solve for x
    x = 16,872,489.96/4,630.06
  6. Step 6: Final answer
    x = 3,644.12

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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.