Home / 5,355.12-8,029.50-1,656.25

Finding the Fourth Proportional to 5,355.12, 8,029.50 and 1,656.25

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Solution

The fourth proportional to 5,355.12, 8,029.50 and 1,656.25 is: 2,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.12 : 8,029.50 = 1,656.25 : x
  2. Step 2: Convert to fraction form
    5,355.12/8,029.50 = 1,656.25/x
  3. Step 3: Cross multiply
    5,355.12x = 8,029.50 × 1,656.25
  4. Step 4: Simplify right side
    5,355.12x = 13,298,859.38
  5. Step 5: Solve for x
    x = 13,298,859.38/5,355.12
  6. Step 6: Final answer
    x = 2,483.39

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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.