Home / 4,940.56-7,410.84-1,980.35

Finding the Fourth Proportional to 4,940.56, 7,410.84 and 1,980.35

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Solution

The fourth proportional to 4,940.56, 7,410.84 and 1,980.35 is: 2,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.56 : 7,410.84 = 1,980.35 : x
  2. Step 2: Convert to fraction form
    4,940.56/7,410.84 = 1,980.35/x
  3. Step 3: Cross multiply
    4,940.56x = 7,410.84 × 1,980.35
  4. Step 4: Simplify right side
    4,940.56x = 14,676,056.99
  5. Step 5: Solve for x
    x = 14,676,056.99/4,940.56
  6. Step 6: Final answer
    x = 2,970.53

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Similar ratio
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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.