Home / 5,680.64-7,838.08-3,196.16

Finding the Fourth Proportional to 5,680.64, 7,838.08 and 3,196.16

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Solution

The fourth proportional to 5,680.64, 7,838.08 and 3,196.16 is: 4,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.64 : 7,838.08 = 3,196.16 : x
  2. Step 2: Convert to fraction form
    5,680.64/7,838.08 = 3,196.16/x
  3. Step 3: Cross multiply
    5,680.64x = 7,838.08 × 3,196.16
  4. Step 4: Simplify right side
    5,680.64x = 25,051,757.77
  5. Step 5: Solve for x
    x = 25,051,757.77/5,680.64
  6. Step 6: Final answer
    x = 4,410.02

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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.