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Finding the Fourth Proportional to 5,534.79, 8,303.79 and 1,639.29

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Solution

The fourth proportional to 5,534.79, 8,303.79 and 1,639.29 is: 2,459.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,534.79 : 8,303.79 = 1,639.29 : x
  2. Step 2: Convert to fraction form
    5,534.79/8,303.79 = 1,639.29/x
  3. Step 3: Cross multiply
    5,534.79x = 8,303.79 × 1,639.29
  4. Step 4: Simplify right side
    5,534.79x = 13,612,319.91
  5. Step 5: Solve for x
    x = 13,612,319.91/5,534.79
  6. Step 6: Final answer
    x = 2,459.41

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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.