Home / 3,090.79-4,265.06-1,764.32

Finding the Fourth Proportional to 3,090.79, 4,265.06 and 1,764.32

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Solution

The fourth proportional to 3,090.79, 4,265.06 and 1,764.32 is: 2,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.79 : 4,265.06 = 1,764.32 : x
  2. Step 2: Convert to fraction form
    3,090.79/4,265.06 = 1,764.32/x
  3. Step 3: Cross multiply
    3,090.79x = 4,265.06 × 1,764.32
  4. Step 4: Simplify right side
    3,090.79x = 7,524,930.66
  5. Step 5: Solve for x
    x = 7,524,930.66/3,090.79
  6. Step 6: Final answer
    x = 2,434.63

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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.