Home / 5,501.72-8,251.78-1,605.64

Finding the Fourth Proportional to 5,501.72, 8,251.78 and 1,605.64

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Solution

The fourth proportional to 5,501.72, 8,251.78 and 1,605.64 is: 2,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,501.72 : 8,251.78 = 1,605.64 : x
  2. Step 2: Convert to fraction form
    5,501.72/8,251.78 = 1,605.64/x
  3. Step 3: Cross multiply
    5,501.72x = 8,251.78 × 1,605.64
  4. Step 4: Simplify right side
    5,501.72x = 13,249,388.04
  5. Step 5: Solve for x
    x = 13,249,388.04/5,501.72
  6. Step 6: Final answer
    x = 2,408.23

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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.