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Finding the Fourth Proportional to 1,707.30, 2,558.82 and 885.09

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Solution

The fourth proportional to 1,707.30, 2,558.82 and 885.09 is: 1,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.30 : 2,558.82 = 885.09 : x
  2. Step 2: Convert to fraction form
    1,707.30/2,558.82 = 885.09/x
  3. Step 3: Cross multiply
    1,707.30x = 2,558.82 × 885.09
  4. Step 4: Simplify right side
    1,707.30x = 2,264,785.99
  5. Step 5: Solve for x
    x = 2,264,785.99/1,707.30
  6. Step 6: Final answer
    x = 1,326.53

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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.