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Finding the Fourth Proportional to 1,665.35, 2,497.61 and 625.44

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Solution

The fourth proportional to 1,665.35, 2,497.61 and 625.44 is: 938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.35 : 2,497.61 = 625.44 : x
  2. Step 2: Convert to fraction form
    1,665.35/2,497.61 = 625.44/x
  3. Step 3: Cross multiply
    1,665.35x = 2,497.61 × 625.44
  4. Step 4: Simplify right side
    1,665.35x = 1,562,102.07
  5. Step 5: Solve for x
    x = 1,562,102.07/1,665.35
  6. Step 6: Final answer
    x = 938.01

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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.