Home / 5,639.40-8,459.34-1,743.88

Finding the Fourth Proportional to 5,639.40, 8,459.34 and 1,743.88

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Solution

The fourth proportional to 5,639.40, 8,459.34 and 1,743.88 is: 2,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.40 : 8,459.34 = 1,743.88 : x
  2. Step 2: Convert to fraction form
    5,639.40/8,459.34 = 1,743.88/x
  3. Step 3: Cross multiply
    5,639.40x = 8,459.34 × 1,743.88
  4. Step 4: Simplify right side
    5,639.40x = 14,752,073.84
  5. Step 5: Solve for x
    x = 14,752,073.84/5,639.40
  6. Step 6: Final answer
    x = 2,615.89

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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.