Home / 5,320.97-7,977.75-2,357.81

Finding the Fourth Proportional to 5,320.97, 7,977.75 and 2,357.81

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Solution

The fourth proportional to 5,320.97, 7,977.75 and 2,357.81 is: 3,535.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.97 : 7,977.75 = 2,357.81 : x
  2. Step 2: Convert to fraction form
    5,320.97/7,977.75 = 2,357.81/x
  3. Step 3: Cross multiply
    5,320.97x = 7,977.75 × 2,357.81
  4. Step 4: Simplify right side
    5,320.97x = 18,809,978.84
  5. Step 5: Solve for x
    x = 18,809,978.84/5,320.97
  6. Step 6: Final answer
    x = 3,535.07

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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.