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Finding the Fourth Proportional to 1,703.53, 2,351.72 and 1,114.96

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Solution

The fourth proportional to 1,703.53, 2,351.72 and 1,114.96 is: 1,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.53 : 2,351.72 = 1,114.96 : x
  2. Step 2: Convert to fraction form
    1,703.53/2,351.72 = 1,114.96/x
  3. Step 3: Cross multiply
    1,703.53x = 2,351.72 × 1,114.96
  4. Step 4: Simplify right side
    1,703.53x = 2,622,068.16
  5. Step 5: Solve for x
    x = 2,622,068.16/1,703.53
  6. Step 6: Final answer
    x = 1,539.20

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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.