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Finding the Fourth Proportional to 3,085.94, 4,257.53 and 1,758.68

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Solution

The fourth proportional to 3,085.94, 4,257.53 and 1,758.68 is: 2,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.94 : 4,257.53 = 1,758.68 : x
  2. Step 2: Convert to fraction form
    3,085.94/4,257.53 = 1,758.68/x
  3. Step 3: Cross multiply
    3,085.94x = 4,257.53 × 1,758.68
  4. Step 4: Simplify right side
    3,085.94x = 7,487,632.86
  5. Step 5: Solve for x
    x = 7,487,632.86/3,085.94
  6. Step 6: Final answer
    x = 2,426.37

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1.5x scale

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.