Home / 3,320.67-4,977.77-1,590.51

Finding the Fourth Proportional to 3,320.67, 4,977.77 and 1,590.51

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Solution

The fourth proportional to 3,320.67, 4,977.77 and 1,590.51 is: 2,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.67 : 4,977.77 = 1,590.51 : x
  2. Step 2: Convert to fraction form
    3,320.67/4,977.77 = 1,590.51/x
  3. Step 3: Cross multiply
    3,320.67x = 4,977.77 × 1,590.51
  4. Step 4: Simplify right side
    3,320.67x = 7,917,185.01
  5. Step 5: Solve for x
    x = 7,917,185.01/3,320.67
  6. Step 6: Final answer
    x = 2,384.21

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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.