Home / 4,630.32-6,390.45-2,640.42

Finding the Fourth Proportional to 4,630.32, 6,390.45 and 2,640.42

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Solution

The fourth proportional to 4,630.32, 6,390.45 and 2,640.42 is: 3,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.32 : 6,390.45 = 2,640.42 : x
  2. Step 2: Convert to fraction form
    4,630.32/6,390.45 = 2,640.42/x
  3. Step 3: Cross multiply
    4,630.32x = 6,390.45 × 2,640.42
  4. Step 4: Simplify right side
    4,630.32x = 16,873,471.99
  5. Step 5: Solve for x
    x = 16,873,471.99/4,630.32
  6. Step 6: Final answer
    x = 3,644.13

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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.