Home / 5,135.08-7,088.16-3,954.64

Finding the Fourth Proportional to 5,135.08, 7,088.16 and 3,954.64

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Solution

The fourth proportional to 5,135.08, 7,088.16 and 3,954.64 is: 5,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.08 : 7,088.16 = 3,954.64 : x
  2. Step 2: Convert to fraction form
    5,135.08/7,088.16 = 3,954.64/x
  3. Step 3: Cross multiply
    5,135.08x = 7,088.16 × 3,954.64
  4. Step 4: Simplify right side
    5,135.08x = 28,031,121.06
  5. Step 5: Solve for x
    x = 28,031,121.06/5,135.08
  6. Step 6: Final answer
    x = 5,458.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.