Home / 4,728.40-7,092.60-2,680.40

Finding the Fourth Proportional to 4,728.40, 7,092.60 and 2,680.40

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Solution

The fourth proportional to 4,728.40, 7,092.60 and 2,680.40 is: 4,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.40 : 7,092.60 = 2,680.40 : x
  2. Step 2: Convert to fraction form
    4,728.40/7,092.60 = 2,680.40/x
  3. Step 3: Cross multiply
    4,728.40x = 7,092.60 × 2,680.40
  4. Step 4: Simplify right side
    4,728.40x = 19,011,005.04
  5. Step 5: Solve for x
    x = 19,011,005.04/4,728.40
  6. Step 6: Final answer
    x = 4,020.60

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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.