Home / 6,680.64-9,219.60-3,887.04

Finding the Fourth Proportional to 6,680.64, 9,219.60 and 3,887.04

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Solution

The fourth proportional to 6,680.64, 9,219.60 and 3,887.04 is: 5,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.64 : 9,219.60 = 3,887.04 : x
  2. Step 2: Convert to fraction form
    6,680.64/9,219.60 = 3,887.04/x
  3. Step 3: Cross multiply
    6,680.64x = 9,219.60 × 3,887.04
  4. Step 4: Simplify right side
    6,680.64x = 35,836,953.98
  5. Step 5: Solve for x
    x = 35,836,953.98/6,680.64
  6. Step 6: Final answer
    x = 5,364.30

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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.