Home / 5,345.57-8,015.42-1,646.78

Finding the Fourth Proportional to 5,345.57, 8,015.42 and 1,646.78

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Solution

The fourth proportional to 5,345.57, 8,015.42 and 1,646.78 is: 2,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.57 : 8,015.42 = 1,646.78 : x
  2. Step 2: Convert to fraction form
    5,345.57/8,015.42 = 1,646.78/x
  3. Step 3: Cross multiply
    5,345.57x = 8,015.42 × 1,646.78
  4. Step 4: Simplify right side
    5,345.57x = 13,199,597.39
  5. Step 5: Solve for x
    x = 13,199,597.39/5,345.57
  6. Step 6: Final answer
    x = 2,469.26

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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.