Home / 5,260.80-7,259.76-2,902.79

Finding the Fourth Proportional to 5,260.80, 7,259.76 and 2,902.79

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Solution

The fourth proportional to 5,260.80, 7,259.76 and 2,902.79 is: 4,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.80 : 7,259.76 = 2,902.79 : x
  2. Step 2: Convert to fraction form
    5,260.80/7,259.76 = 2,902.79/x
  3. Step 3: Cross multiply
    5,260.80x = 7,259.76 × 2,902.79
  4. Step 4: Simplify right side
    5,260.80x = 21,073,558.73
  5. Step 5: Solve for x
    x = 21,073,558.73/5,260.80
  6. Step 6: Final answer
    x = 4,005.77

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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.