Home / 3,308.90-4,963.35-3,090.20

Finding the Fourth Proportional to 3,308.90, 4,963.35 and 3,090.20

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Solution

The fourth proportional to 3,308.90, 4,963.35 and 3,090.20 is: 4,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.90 : 4,963.35 = 3,090.20 : x
  2. Step 2: Convert to fraction form
    3,308.90/4,963.35 = 3,090.20/x
  3. Step 3: Cross multiply
    3,308.90x = 4,963.35 × 3,090.20
  4. Step 4: Simplify right side
    3,308.90x = 15,337,744.17
  5. Step 5: Solve for x
    x = 15,337,744.17/3,308.90
  6. Step 6: Final answer
    x = 4,635.30

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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.