Home / 1,703.53-2,349.31-1,105.40

Finding the Fourth Proportional to 1,703.53, 2,349.31 and 1,105.40

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Solution

The fourth proportional to 1,703.53, 2,349.31 and 1,105.40 is: 1,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.53 : 2,349.31 = 1,105.40 : x
  2. Step 2: Convert to fraction form
    1,703.53/2,349.31 = 1,105.40/x
  3. Step 3: Cross multiply
    1,703.53x = 2,349.31 × 1,105.40
  4. Step 4: Simplify right side
    1,703.53x = 2,596,927.27
  5. Step 5: Solve for x
    x = 2,596,927.27/1,703.53
  6. Step 6: Final answer
    x = 1,524.44

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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.