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Finding the Fourth Proportional to 2,126.46, 3,189.69 and 587.46

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Solution

The fourth proportional to 2,126.46, 3,189.69 and 587.46 is: 881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.46 : 3,189.69 = 587.46 : x
  2. Step 2: Convert to fraction form
    2,126.46/3,189.69 = 587.46/x
  3. Step 3: Cross multiply
    2,126.46x = 3,189.69 × 587.46
  4. Step 4: Simplify right side
    2,126.46x = 1,873,815.29
  5. Step 5: Solve for x
    x = 1,873,815.29/2,126.46
  6. Step 6: Final answer
    x = 881.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.