Home / 3,090.75-4,265.24-1,693.47

Finding the Fourth Proportional to 3,090.75, 4,265.24 and 1,693.47

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Solution

The fourth proportional to 3,090.75, 4,265.24 and 1,693.47 is: 2,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.75 : 4,265.24 = 1,693.47 : x
  2. Step 2: Convert to fraction form
    3,090.75/4,265.24 = 1,693.47/x
  3. Step 3: Cross multiply
    3,090.75x = 4,265.24 × 1,693.47
  4. Step 4: Simplify right side
    3,090.75x = 7,223,047.52
  5. Step 5: Solve for x
    x = 7,223,047.52/3,090.75
  6. Step 6: Final answer
    x = 2,336.99

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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.