Home / 3,973.79-5,960.69-1,780.99

Finding the Fourth Proportional to 3,973.79, 5,960.69 and 1,780.99

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Solution

The fourth proportional to 3,973.79, 5,960.69 and 1,780.99 is: 2,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.79 : 5,960.69 = 1,780.99 : x
  2. Step 2: Convert to fraction form
    3,973.79/5,960.69 = 1,780.99/x
  3. Step 3: Cross multiply
    3,973.79x = 5,960.69 × 1,780.99
  4. Step 4: Simplify right side
    3,973.79x = 10,615,912.16
  5. Step 5: Solve for x
    x = 10,615,912.16/3,973.79
  6. Step 6: Final answer
    x = 2,671.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.