Home / 4,638.06-6,400.79-2,845.74

Finding the Fourth Proportional to 4,638.06, 6,400.79 and 2,845.74

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Solution

The fourth proportional to 4,638.06, 6,400.79 and 2,845.74 is: 3,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.06 : 6,400.79 = 2,845.74 : x
  2. Step 2: Convert to fraction form
    4,638.06/6,400.79 = 2,845.74/x
  3. Step 3: Cross multiply
    4,638.06x = 6,400.79 × 2,845.74
  4. Step 4: Simplify right side
    4,638.06x = 18,214,984.13
  5. Step 5: Solve for x
    x = 18,214,984.13/4,638.06
  6. Step 6: Final answer
    x = 3,927.29

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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.