Home / 5,420.59-8,126.94-3,661.23

Finding the Fourth Proportional to 5,420.59, 8,126.94 and 3,661.23

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Solution

The fourth proportional to 5,420.59, 8,126.94 and 3,661.23 is: 5,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.59 : 8,126.94 = 3,661.23 : x
  2. Step 2: Convert to fraction form
    5,420.59/8,126.94 = 3,661.23/x
  3. Step 3: Cross multiply
    5,420.59x = 8,126.94 × 3,661.23
  4. Step 4: Simplify right side
    5,420.59x = 29,754,607.59
  5. Step 5: Solve for x
    x = 29,754,607.59/5,420.59
  6. Step 6: Final answer
    x = 5,489.18

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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.