Home / 1,620.59-2,236.07-1,030.91

Finding the Fourth Proportional to 1,620.59, 2,236.07 and 1,030.91

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Solution

The fourth proportional to 1,620.59, 2,236.07 and 1,030.91 is: 1,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.59 : 2,236.07 = 1,030.91 : x
  2. Step 2: Convert to fraction form
    1,620.59/2,236.07 = 1,030.91/x
  3. Step 3: Cross multiply
    1,620.59x = 2,236.07 × 1,030.91
  4. Step 4: Simplify right side
    1,620.59x = 2,305,170.59
  5. Step 5: Solve for x
    x = 2,305,170.59/1,620.59
  6. Step 6: Final answer
    x = 1,422.43

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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.