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Finding the Fourth Proportional to 1,739.54, 2,609.30 and 441

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Solution

The fourth proportional to 1,739.54, 2,609.30 and 441 is: 661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.54 : 2,609.30 = 441 : x
  2. Step 2: Convert to fraction form
    1,739.54/2,609.30 = 441/x
  3. Step 3: Cross multiply
    1,739.54x = 2,609.30 × 441
  4. Step 4: Simplify right side
    1,739.54x = 1,150,702.40
  5. Step 5: Solve for x
    x = 1,150,702.40/1,739.54
  6. Step 6: Final answer
    x = 661.50

Related Problems

Find fourth proportional to 869.77, 1,304.65 and 220.50
Half scale
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Double scale
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Similar ratio
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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.