Home / 4,630.10-6,389.70-2,640.64

Finding the Fourth Proportional to 4,630.10, 6,389.70 and 2,640.64

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Solution

The fourth proportional to 4,630.10, 6,389.70 and 2,640.64 is: 3,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.10 : 6,389.70 = 2,640.64 : x
  2. Step 2: Convert to fraction form
    4,630.10/6,389.70 = 2,640.64/x
  3. Step 3: Cross multiply
    4,630.10x = 6,389.70 × 2,640.64
  4. Step 4: Simplify right side
    4,630.10x = 16,872,897.41
  5. Step 5: Solve for x
    x = 16,872,897.41/4,630.10
  6. Step 6: Final answer
    x = 3,644.18

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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.