Home / 3,090.75-4,265.25-1,693.50

Finding the Fourth Proportional to 3,090.75, 4,265.25 and 1,693.50

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Solution

The fourth proportional to 3,090.75, 4,265.25 and 1,693.50 is: 2,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.75 : 4,265.25 = 1,693.50 : x
  2. Step 2: Convert to fraction form
    3,090.75/4,265.25 = 1,693.50/x
  3. Step 3: Cross multiply
    3,090.75x = 4,265.25 × 1,693.50
  4. Step 4: Simplify right side
    3,090.75x = 7,223,200.88
  5. Step 5: Solve for x
    x = 7,223,200.88/3,090.75
  6. Step 6: Final answer
    x = 2,337.04

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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.