Home / 5,528.40-7,638.90-4,418.50

Finding the Fourth Proportional to 5,528.40, 7,638.90 and 4,418.50

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Solution

The fourth proportional to 5,528.40, 7,638.90 and 4,418.50 is: 6,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.40 : 7,638.90 = 4,418.50 : x
  2. Step 2: Convert to fraction form
    5,528.40/7,638.90 = 4,418.50/x
  3. Step 3: Cross multiply
    5,528.40x = 7,638.90 × 4,418.50
  4. Step 4: Simplify right side
    5,528.40x = 33,752,477.12
  5. Step 5: Solve for x
    x = 33,752,477.12/5,528.40
  6. Step 6: Final answer
    x = 6,105.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.