Home / 4,630.37-6,389.69-2,640.20

Finding the Fourth Proportional to 4,630.37, 6,389.69 and 2,640.20

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Solution

The fourth proportional to 4,630.37, 6,389.69 and 2,640.20 is: 3,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.37 : 6,389.69 = 2,640.20 : x
  2. Step 2: Convert to fraction form
    4,630.37/6,389.69 = 2,640.20/x
  3. Step 3: Cross multiply
    4,630.37x = 6,389.69 × 2,640.20
  4. Step 4: Simplify right side
    4,630.37x = 16,870,014.39
  5. Step 5: Solve for x
    x = 16,870,014.39/4,630.37
  6. Step 6: Final answer
    x = 3,643.34

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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.