Home / 3,090.88-4,635.04-2,117.28

Finding the Fourth Proportional to 3,090.88, 4,635.04 and 2,117.28

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Solution

The fourth proportional to 3,090.88, 4,635.04 and 2,117.28 is: 3,175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.88 : 4,635.04 = 2,117.28 : x
  2. Step 2: Convert to fraction form
    3,090.88/4,635.04 = 2,117.28/x
  3. Step 3: Cross multiply
    3,090.88x = 4,635.04 × 2,117.28
  4. Step 4: Simplify right side
    3,090.88x = 9,813,677.49
  5. Step 5: Solve for x
    x = 9,813,677.49/3,090.88
  6. Step 6: Final answer
    x = 3,175.04

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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.