Home / 1,124.55-1,558.46-1,108.89

Finding the Fourth Proportional to 1,124.55, 1,558.46 and 1,108.89

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Solution

The fourth proportional to 1,124.55, 1,558.46 and 1,108.89 is: 1,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.55 : 1,558.46 = 1,108.89 : x
  2. Step 2: Convert to fraction form
    1,124.55/1,558.46 = 1,108.89/x
  3. Step 3: Cross multiply
    1,124.55x = 1,558.46 × 1,108.89
  4. Step 4: Simplify right side
    1,124.55x = 1,728,160.71
  5. Step 5: Solve for x
    x = 1,728,160.71/1,124.55
  6. Step 6: Final answer
    x = 1,536.76

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.