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Finding the Fourth Proportional to 3,501.20, 5,316.64 and 3,501.20

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Solution

The fourth proportional to 3,501.20, 5,316.64 and 3,501.20 is: 5,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.20 : 5,316.64 = 3,501.20 : x
  2. Step 2: Convert to fraction form
    3,501.20/5,316.64 = 3,501.20/x
  3. Step 3: Cross multiply
    3,501.20x = 5,316.64 × 3,501.20
  4. Step 4: Simplify right side
    3,501.20x = 18,614,619.97
  5. Step 5: Solve for x
    x = 18,614,619.97/3,501.20
  6. Step 6: Final answer
    x = 5,316.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.