Home / 4,638.70-6,403.35-2,960.20

Finding the Fourth Proportional to 4,638.70, 6,403.35 and 2,960.20

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Solution

The fourth proportional to 4,638.70, 6,403.35 and 2,960.20 is: 4,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.70 : 6,403.35 = 2,960.20 : x
  2. Step 2: Convert to fraction form
    4,638.70/6,403.35 = 2,960.20/x
  3. Step 3: Cross multiply
    4,638.70x = 6,403.35 × 2,960.20
  4. Step 4: Simplify right side
    4,638.70x = 18,955,196.67
  5. Step 5: Solve for x
    x = 18,955,196.67/4,638.70
  6. Step 6: Final answer
    x = 4,086.32

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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.