Home / 1,817.17-2,507.66-1,020.51

Finding the Fourth Proportional to 1,817.17, 2,507.66 and 1,020.51

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Solution

The fourth proportional to 1,817.17, 2,507.66 and 1,020.51 is: 1,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.17 : 2,507.66 = 1,020.51 : x
  2. Step 2: Convert to fraction form
    1,817.17/2,507.66 = 1,020.51/x
  3. Step 3: Cross multiply
    1,817.17x = 2,507.66 × 1,020.51
  4. Step 4: Simplify right side
    1,817.17x = 2,559,092.11
  5. Step 5: Solve for x
    x = 2,559,092.11/1,817.17
  6. Step 6: Final answer
    x = 1,408.28

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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.