Home / 5,436.64-8,157.12-2,516.32

Finding the Fourth Proportional to 5,436.64, 8,157.12 and 2,516.32

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Solution

The fourth proportional to 5,436.64, 8,157.12 and 2,516.32 is: 3,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.64 : 8,157.12 = 2,516.32 : x
  2. Step 2: Convert to fraction form
    5,436.64/8,157.12 = 2,516.32/x
  3. Step 3: Cross multiply
    5,436.64x = 8,157.12 × 2,516.32
  4. Step 4: Simplify right side
    5,436.64x = 20,525,924.20
  5. Step 5: Solve for x
    x = 20,525,924.20/5,436.64
  6. Step 6: Final answer
    x = 3,775.48

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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.