Home / 5,418.04-7,515.15-5,274.03

Finding the Fourth Proportional to 5,418.04, 7,515.15 and 5,274.03

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Solution

The fourth proportional to 5,418.04, 7,515.15 and 5,274.03 is: 7,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.04 : 7,515.15 = 5,274.03 : x
  2. Step 2: Convert to fraction form
    5,418.04/7,515.15 = 5,274.03/x
  3. Step 3: Cross multiply
    5,418.04x = 7,515.15 × 5,274.03
  4. Step 4: Simplify right side
    5,418.04x = 39,635,092.69
  5. Step 5: Solve for x
    x = 39,635,092.69/5,418.04
  6. Step 6: Final answer
    x = 7,315.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.