Home / 4,970.73-6,861.75-2,980.98

Finding the Fourth Proportional to 4,970.73, 6,861.75 and 2,980.98

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Solution

The fourth proportional to 4,970.73, 6,861.75 and 2,980.98 is: 4,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.73 : 6,861.75 = 2,980.98 : x
  2. Step 2: Convert to fraction form
    4,970.73/6,861.75 = 2,980.98/x
  3. Step 3: Cross multiply
    4,970.73x = 6,861.75 × 2,980.98
  4. Step 4: Simplify right side
    4,970.73x = 20,454,739.52
  5. Step 5: Solve for x
    x = 20,454,739.52/4,970.73
  6. Step 6: Final answer
    x = 4,115.04

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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.