Home / 3,090.70-4,265.13-1,693.45

Finding the Fourth Proportional to 3,090.70, 4,265.13 and 1,693.45

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Solution

The fourth proportional to 3,090.70, 4,265.13 and 1,693.45 is: 2,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.70 : 4,265.13 = 1,693.45 : x
  2. Step 2: Convert to fraction form
    3,090.70/4,265.13 = 1,693.45/x
  3. Step 3: Cross multiply
    3,090.70x = 4,265.13 × 1,693.45
  4. Step 4: Simplify right side
    3,090.70x = 7,222,784.40
  5. Step 5: Solve for x
    x = 7,222,784.40/3,090.70
  6. Step 6: Final answer
    x = 2,336.94

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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.