Home / 4,669.20-6,443.73-2,781.90

Finding the Fourth Proportional to 4,669.20, 6,443.73 and 2,781.90

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Solution

The fourth proportional to 4,669.20, 6,443.73 and 2,781.90 is: 3,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,669.20 : 6,443.73 = 2,781.90 : x
  2. Step 2: Convert to fraction form
    4,669.20/6,443.73 = 2,781.90/x
  3. Step 3: Cross multiply
    4,669.20x = 6,443.73 × 2,781.90
  4. Step 4: Simplify right side
    4,669.20x = 17,925,812.49
  5. Step 5: Solve for x
    x = 17,925,812.49/4,669.20
  6. Step 6: Final answer
    x = 3,839.16

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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.