Home / 1,687.01-2,531.48-1,347.17

Finding the Fourth Proportional to 1,687.01, 2,531.48 and 1,347.17

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Solution

The fourth proportional to 1,687.01, 2,531.48 and 1,347.17 is: 2,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.01 : 2,531.48 = 1,347.17 : x
  2. Step 2: Convert to fraction form
    1,687.01/2,531.48 = 1,347.17/x
  3. Step 3: Cross multiply
    1,687.01x = 2,531.48 × 1,347.17
  4. Step 4: Simplify right side
    1,687.01x = 3,410,327.18
  5. Step 5: Solve for x
    x = 3,410,327.18/1,687.01
  6. Step 6: Final answer
    x = 2,021.52

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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.