Home / 1,403.57-2,104.32-673.66

Finding the Fourth Proportional to 1,403.57, 2,104.32 and 673.66

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Solution

The fourth proportional to 1,403.57, 2,104.32 and 673.66 is: 1,009.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.57 : 2,104.32 = 673.66 : x
  2. Step 2: Convert to fraction form
    1,403.57/2,104.32 = 673.66/x
  3. Step 3: Cross multiply
    1,403.57x = 2,104.32 × 673.66
  4. Step 4: Simplify right side
    1,403.57x = 1,417,590.95
  5. Step 5: Solve for x
    x = 1,417,590.95/1,403.57
  6. Step 6: Final answer
    x = 1,009.99

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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.