Home / 1,727.15-2,590.70-494.55

Finding the Fourth Proportional to 1,727.15, 2,590.70 and 494.55

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Solution

The fourth proportional to 1,727.15, 2,590.70 and 494.55 is: 741.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.15 : 2,590.70 = 494.55 : x
  2. Step 2: Convert to fraction form
    1,727.15/2,590.70 = 494.55/x
  3. Step 3: Cross multiply
    1,727.15x = 2,590.70 × 494.55
  4. Step 4: Simplify right side
    1,727.15x = 1,281,228.21
  5. Step 5: Solve for x
    x = 1,281,228.21/1,727.15
  6. Step 6: Final answer
    x = 741.82

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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.