Home / 4,809.27-6,638.46-2,820.51

Finding the Fourth Proportional to 4,809.27, 6,638.46 and 2,820.51

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Solution

The fourth proportional to 4,809.27, 6,638.46 and 2,820.51 is: 3,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.27 : 6,638.46 = 2,820.51 : x
  2. Step 2: Convert to fraction form
    4,809.27/6,638.46 = 2,820.51/x
  3. Step 3: Cross multiply
    4,809.27x = 6,638.46 × 2,820.51
  4. Step 4: Simplify right side
    4,809.27x = 18,723,842.81
  5. Step 5: Solve for x
    x = 18,723,842.81/4,809.27
  6. Step 6: Final answer
    x = 3,893.28

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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.