Home / 5,610.48-8,440.72-3,420.96

Finding the Fourth Proportional to 5,610.48, 8,440.72 and 3,420.96

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Solution

The fourth proportional to 5,610.48, 8,440.72 and 3,420.96 is: 5,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.48 : 8,440.72 = 3,420.96 : x
  2. Step 2: Convert to fraction form
    5,610.48/8,440.72 = 3,420.96/x
  3. Step 3: Cross multiply
    5,610.48x = 8,440.72 × 3,420.96
  4. Step 4: Simplify right side
    5,610.48x = 28,875,365.49
  5. Step 5: Solve for x
    x = 28,875,365.49/5,610.48
  6. Step 6: Final answer
    x = 5,146.68

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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.