Home / 3,313.83-4,572.90-1,986.87

Finding the Fourth Proportional to 3,313.83, 4,572.90 and 1,986.87

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Solution

The fourth proportional to 3,313.83, 4,572.90 and 1,986.87 is: 2,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.83 : 4,572.90 = 1,986.87 : x
  2. Step 2: Convert to fraction form
    3,313.83/4,572.90 = 1,986.87/x
  3. Step 3: Cross multiply
    3,313.83x = 4,572.90 × 1,986.87
  4. Step 4: Simplify right side
    3,313.83x = 9,085,757.82
  5. Step 5: Solve for x
    x = 9,085,757.82/3,313.83
  6. Step 6: Final answer
    x = 2,741.77

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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.