Home / 2,381.43-3,286.98-1,586.08

Finding the Fourth Proportional to 2,381.43, 3,286.98 and 1,586.08

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Solution

The fourth proportional to 2,381.43, 3,286.98 and 1,586.08 is: 2,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.43 : 3,286.98 = 1,586.08 : x
  2. Step 2: Convert to fraction form
    2,381.43/3,286.98 = 1,586.08/x
  3. Step 3: Cross multiply
    2,381.43x = 3,286.98 × 1,586.08
  4. Step 4: Simplify right side
    2,381.43x = 5,213,417.35
  5. Step 5: Solve for x
    x = 5,213,417.35/2,381.43
  6. Step 6: Final answer
    x = 2,189.19

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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.