Home / 6,128.48-9,177.90-3,487.98

Finding the Fourth Proportional to 6,128.48, 9,177.90 and 3,487.98

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Solution

The fourth proportional to 6,128.48, 9,177.90 and 3,487.98 is: 5,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.48 : 9,177.90 = 3,487.98 : x
  2. Step 2: Convert to fraction form
    6,128.48/9,177.90 = 3,487.98/x
  3. Step 3: Cross multiply
    6,128.48x = 9,177.90 × 3,487.98
  4. Step 4: Simplify right side
    6,128.48x = 32,012,331.64
  5. Step 5: Solve for x
    x = 32,012,331.64/6,128.48
  6. Step 6: Final answer
    x = 5,223.54

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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.