Home / 3,096.79-4,642.91-1,987.46

Finding the Fourth Proportional to 3,096.79, 4,642.91 and 1,987.46

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Solution

The fourth proportional to 3,096.79, 4,642.91 and 1,987.46 is: 2,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,096.79 : 4,642.91 = 1,987.46 : x
  2. Step 2: Convert to fraction form
    3,096.79/4,642.91 = 1,987.46/x
  3. Step 3: Cross multiply
    3,096.79x = 4,642.91 × 1,987.46
  4. Step 4: Simplify right side
    3,096.79x = 9,227,597.91
  5. Step 5: Solve for x
    x = 9,227,597.91/3,096.79
  6. Step 6: Final answer
    x = 2,979.73

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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.