Home / 1,558.42-2,149.45-1,103.99

Finding the Fourth Proportional to 1,558.42, 2,149.45 and 1,103.99

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Solution

The fourth proportional to 1,558.42, 2,149.45 and 1,103.99 is: 1,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.42 : 2,149.45 = 1,103.99 : x
  2. Step 2: Convert to fraction form
    1,558.42/2,149.45 = 1,103.99/x
  3. Step 3: Cross multiply
    1,558.42x = 2,149.45 × 1,103.99
  4. Step 4: Simplify right side
    1,558.42x = 2,372,957.80
  5. Step 5: Solve for x
    x = 2,372,957.80/1,558.42
  6. Step 6: Final answer
    x = 1,522.67

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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.