Home / 2,085.05-3,126.65-623.92

Finding the Fourth Proportional to 2,085.05, 3,126.65 and 623.92

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Solution

The fourth proportional to 2,085.05, 3,126.65 and 623.92 is: 935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.05 : 3,126.65 = 623.92 : x
  2. Step 2: Convert to fraction form
    2,085.05/3,126.65 = 623.92/x
  3. Step 3: Cross multiply
    2,085.05x = 3,126.65 × 623.92
  4. Step 4: Simplify right side
    2,085.05x = 1,950,788.84
  5. Step 5: Solve for x
    x = 1,950,788.84/2,085.05
  6. Step 6: Final answer
    x = 935.61

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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.