Home / 1,586.92-2,190.60-1,170.58

Finding the Fourth Proportional to 1,586.92, 2,190.60 and 1,170.58

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Solution

The fourth proportional to 1,586.92, 2,190.60 and 1,170.58 is: 1,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.92 : 2,190.60 = 1,170.58 : x
  2. Step 2: Convert to fraction form
    1,586.92/2,190.60 = 1,170.58/x
  3. Step 3: Cross multiply
    1,586.92x = 2,190.60 × 1,170.58
  4. Step 4: Simplify right side
    1,586.92x = 2,564,272.55
  5. Step 5: Solve for x
    x = 2,564,272.55/1,586.92
  6. Step 6: Final answer
    x = 1,615.88

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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.