Home / 4,638.04-6,400.80-2,845.72

Finding the Fourth Proportional to 4,638.04, 6,400.80 and 2,845.72

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Solution

The fourth proportional to 4,638.04, 6,400.80 and 2,845.72 is: 3,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.04 : 6,400.80 = 2,845.72 : x
  2. Step 2: Convert to fraction form
    4,638.04/6,400.80 = 2,845.72/x
  3. Step 3: Cross multiply
    4,638.04x = 6,400.80 × 2,845.72
  4. Step 4: Simplify right side
    4,638.04x = 18,214,884.58
  5. Step 5: Solve for x
    x = 18,214,884.58/4,638.04
  6. Step 6: Final answer
    x = 3,927.28

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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.