Home / 5,418.99-8,126.45-2,130.29

Finding the Fourth Proportional to 5,418.99, 8,126.45 and 2,130.29

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Solution

The fourth proportional to 5,418.99, 8,126.45 and 2,130.29 is: 3,194.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.99 : 8,126.45 = 2,130.29 : x
  2. Step 2: Convert to fraction form
    5,418.99/8,126.45 = 2,130.29/x
  3. Step 3: Cross multiply
    5,418.99x = 8,126.45 × 2,130.29
  4. Step 4: Simplify right side
    5,418.99x = 17,311,643.89
  5. Step 5: Solve for x
    x = 17,311,643.89/5,418.99
  6. Step 6: Final answer
    x = 3,194.63

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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.