Home / 2,986.55-4,457.24-2,908.79

Finding the Fourth Proportional to 2,986.55, 4,457.24 and 2,908.79

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Solution

The fourth proportional to 2,986.55, 4,457.24 and 2,908.79 is: 4,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.55 : 4,457.24 = 2,908.79 : x
  2. Step 2: Convert to fraction form
    2,986.55/4,457.24 = 2,908.79/x
  3. Step 3: Cross multiply
    2,986.55x = 4,457.24 × 2,908.79
  4. Step 4: Simplify right side
    2,986.55x = 12,965,138.31
  5. Step 5: Solve for x
    x = 12,965,138.31/2,986.55
  6. Step 6: Final answer
    x = 4,341.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.