Home / 4,638.40-6,400.89-2,648.77

Finding the Fourth Proportional to 4,638.40, 6,400.89 and 2,648.77

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Solution

The fourth proportional to 4,638.40, 6,400.89 and 2,648.77 is: 3,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.40 : 6,400.89 = 2,648.77 : x
  2. Step 2: Convert to fraction form
    4,638.40/6,400.89 = 2,648.77/x
  3. Step 3: Cross multiply
    4,638.40x = 6,400.89 × 2,648.77
  4. Step 4: Simplify right side
    4,638.40x = 16,954,469.40
  5. Step 5: Solve for x
    x = 16,954,469.40/4,638.40
  6. Step 6: Final answer
    x = 3,655.24

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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.