Home / 3,626.77-5,415.50-3,421.44

Finding the Fourth Proportional to 3,626.77, 5,415.50 and 3,421.44

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Solution

The fourth proportional to 3,626.77, 5,415.50 and 3,421.44 is: 5,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.77 : 5,415.50 = 3,421.44 : x
  2. Step 2: Convert to fraction form
    3,626.77/5,415.50 = 3,421.44/x
  3. Step 3: Cross multiply
    3,626.77x = 5,415.50 × 3,421.44
  4. Step 4: Simplify right side
    3,626.77x = 18,528,808.32
  5. Step 5: Solve for x
    x = 18,528,808.32/3,626.77
  6. Step 6: Final answer
    x = 5,108.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.