Home / 2,558.55-3,838.51-1,243.62

Finding the Fourth Proportional to 2,558.55, 3,838.51 and 1,243.62

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Solution

The fourth proportional to 2,558.55, 3,838.51 and 1,243.62 is: 1,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.55 : 3,838.51 = 1,243.62 : x
  2. Step 2: Convert to fraction form
    2,558.55/3,838.51 = 1,243.62/x
  3. Step 3: Cross multiply
    2,558.55x = 3,838.51 × 1,243.62
  4. Step 4: Simplify right side
    2,558.55x = 4,773,649.36
  5. Step 5: Solve for x
    x = 4,773,649.36/2,558.55
  6. Step 6: Final answer
    x = 1,865.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.