Home / 5,558.78-7,669.50-3,434.60

Finding the Fourth Proportional to 5,558.78, 7,669.50 and 3,434.60

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Solution

The fourth proportional to 5,558.78, 7,669.50 and 3,434.60 is: 4,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.78 : 7,669.50 = 3,434.60 : x
  2. Step 2: Convert to fraction form
    5,558.78/7,669.50 = 3,434.60/x
  3. Step 3: Cross multiply
    5,558.78x = 7,669.50 × 3,434.60
  4. Step 4: Simplify right side
    5,558.78x = 26,341,664.70
  5. Step 5: Solve for x
    x = 26,341,664.70/5,558.78
  6. Step 6: Final answer
    x = 4,738.75

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1.5x scale

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.