Home / 1,586.43-2,191.10-1,212.57

Finding the Fourth Proportional to 1,586.43, 2,191.10 and 1,212.57

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Solution

The fourth proportional to 1,586.43, 2,191.10 and 1,212.57 is: 1,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.43 : 2,191.10 = 1,212.57 : x
  2. Step 2: Convert to fraction form
    1,586.43/2,191.10 = 1,212.57/x
  3. Step 3: Cross multiply
    1,586.43x = 2,191.10 × 1,212.57
  4. Step 4: Simplify right side
    1,586.43x = 2,656,856.06
  5. Step 5: Solve for x
    x = 2,656,856.06/1,586.43
  6. Step 6: Final answer
    x = 1,674.74

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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.