Home / 3,245.57-4,478.51-1,986.92

Finding the Fourth Proportional to 3,245.57, 4,478.51 and 1,986.92

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Solution

The fourth proportional to 3,245.57, 4,478.51 and 1,986.92 is: 2,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.57 : 4,478.51 = 1,986.92 : x
  2. Step 2: Convert to fraction form
    3,245.57/4,478.51 = 1,986.92/x
  3. Step 3: Cross multiply
    3,245.57x = 4,478.51 × 1,986.92
  4. Step 4: Simplify right side
    3,245.57x = 8,898,423.66
  5. Step 5: Solve for x
    x = 8,898,423.66/3,245.57
  6. Step 6: Final answer
    x = 2,741.72

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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.