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Finding the Fourth Proportional to 2,986.16, 4,479.30 and 795.11

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Solution

The fourth proportional to 2,986.16, 4,479.30 and 795.11 is: 1,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.16 : 4,479.30 = 795.11 : x
  2. Step 2: Convert to fraction form
    2,986.16/4,479.30 = 795.11/x
  3. Step 3: Cross multiply
    2,986.16x = 4,479.30 × 795.11
  4. Step 4: Simplify right side
    2,986.16x = 3,561,513.83
  5. Step 5: Solve for x
    x = 3,561,513.83/2,986.16
  6. Step 6: Final answer
    x = 1,192.68

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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.