Home / 5,360.48-8,040.94-1,665.20

Finding the Fourth Proportional to 5,360.48, 8,040.94 and 1,665.20

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Solution

The fourth proportional to 5,360.48, 8,040.94 and 1,665.20 is: 2,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.48 : 8,040.94 = 1,665.20 : x
  2. Step 2: Convert to fraction form
    5,360.48/8,040.94 = 1,665.20/x
  3. Step 3: Cross multiply
    5,360.48x = 8,040.94 × 1,665.20
  4. Step 4: Simplify right side
    5,360.48x = 13,389,764.96
  5. Step 5: Solve for x
    x = 13,389,764.96/5,360.48
  6. Step 6: Final answer
    x = 2,497.87

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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.