Home / 1,738.30-2,607.38-505.68

Finding the Fourth Proportional to 1,738.30, 2,607.38 and 505.68

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Solution

The fourth proportional to 1,738.30, 2,607.38 and 505.68 is: 758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738.30 : 2,607.38 = 505.68 : x
  2. Step 2: Convert to fraction form
    1,738.30/2,607.38 = 505.68/x
  3. Step 3: Cross multiply
    1,738.30x = 2,607.38 × 505.68
  4. Step 4: Simplify right side
    1,738.30x = 1,318,499.92
  5. Step 5: Solve for x
    x = 1,318,499.92/1,738.30
  6. Step 6: Final answer
    x = 758.50

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1.5x scale

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.