Home / 3,355.20-4,626.88-3,090.32

Finding the Fourth Proportional to 3,355.20, 4,626.88 and 3,090.32

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Solution

The fourth proportional to 3,355.20, 4,626.88 and 3,090.32 is: 4,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.20 : 4,626.88 = 3,090.32 : x
  2. Step 2: Convert to fraction form
    3,355.20/4,626.88 = 3,090.32/x
  3. Step 3: Cross multiply
    3,355.20x = 4,626.88 × 3,090.32
  4. Step 4: Simplify right side
    3,355.20x = 14,298,539.80
  5. Step 5: Solve for x
    x = 14,298,539.80/3,355.20
  6. Step 6: Final answer
    x = 4,261.61

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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.