Home / 4,809.98-6,638.28-2,820.62

Finding the Fourth Proportional to 4,809.98, 6,638.28 and 2,820.62

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Solution

The fourth proportional to 4,809.98, 6,638.28 and 2,820.62 is: 3,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.98 : 6,638.28 = 2,820.62 : x
  2. Step 2: Convert to fraction form
    4,809.98/6,638.28 = 2,820.62/x
  3. Step 3: Cross multiply
    4,809.98x = 6,638.28 × 2,820.62
  4. Step 4: Simplify right side
    4,809.98x = 18,724,065.33
  5. Step 5: Solve for x
    x = 18,724,065.33/4,809.98
  6. Step 6: Final answer
    x = 3,892.75

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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.