Home / 4,790.64-7,188.42-1,981.56

Finding the Fourth Proportional to 4,790.64, 7,188.42 and 1,981.56

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Solution

The fourth proportional to 4,790.64, 7,188.42 and 1,981.56 is: 2,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.64 : 7,188.42 = 1,981.56 : x
  2. Step 2: Convert to fraction form
    4,790.64/7,188.42 = 1,981.56/x
  3. Step 3: Cross multiply
    4,790.64x = 7,188.42 × 1,981.56
  4. Step 4: Simplify right side
    4,790.64x = 14,244,285.54
  5. Step 5: Solve for x
    x = 14,244,285.54/4,790.64
  6. Step 6: Final answer
    x = 2,973.36

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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.