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Finding the Fourth Proportional to 1,623.68, 2,240.72 and 925.06

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Solution

The fourth proportional to 1,623.68, 2,240.72 and 925.06 is: 1,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.68 : 2,240.72 = 925.06 : x
  2. Step 2: Convert to fraction form
    1,623.68/2,240.72 = 925.06/x
  3. Step 3: Cross multiply
    1,623.68x = 2,240.72 × 925.06
  4. Step 4: Simplify right side
    1,623.68x = 2,072,800.44
  5. Step 5: Solve for x
    x = 2,072,800.44/1,623.68
  6. Step 6: Final answer
    x = 1,276.61

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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.