Home / 5,478.36-7,558.29-3,118.83

Finding the Fourth Proportional to 5,478.36, 7,558.29 and 3,118.83

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Solution

The fourth proportional to 5,478.36, 7,558.29 and 3,118.83 is: 4,302.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.36 : 7,558.29 = 3,118.83 : x
  2. Step 2: Convert to fraction form
    5,478.36/7,558.29 = 3,118.83/x
  3. Step 3: Cross multiply
    5,478.36x = 7,558.29 × 3,118.83
  4. Step 4: Simplify right side
    5,478.36x = 23,573,021.60
  5. Step 5: Solve for x
    x = 23,573,021.60/5,478.36
  6. Step 6: Final answer
    x = 4,302.93

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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.