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Finding the Fourth Proportional to 1,607.49, 2,407.83 and 825.11

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Solution

The fourth proportional to 1,607.49, 2,407.83 and 825.11 is: 1,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.49 : 2,407.83 = 825.11 : x
  2. Step 2: Convert to fraction form
    1,607.49/2,407.83 = 825.11/x
  3. Step 3: Cross multiply
    1,607.49x = 2,407.83 × 825.11
  4. Step 4: Simplify right side
    1,607.49x = 1,986,712.57
  5. Step 5: Solve for x
    x = 1,986,712.57/1,607.49
  6. Step 6: Final answer
    x = 1,235.91

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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.