Home / 2,590.11-3,889.49-2,477.79

Finding the Fourth Proportional to 2,590.11, 3,889.49 and 2,477.79

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Solution

The fourth proportional to 2,590.11, 3,889.49 and 2,477.79 is: 3,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.11 : 3,889.49 = 2,477.79 : x
  2. Step 2: Convert to fraction form
    2,590.11/3,889.49 = 2,477.79/x
  3. Step 3: Cross multiply
    2,590.11x = 3,889.49 × 2,477.79
  4. Step 4: Simplify right side
    2,590.11x = 9,637,327.04
  5. Step 5: Solve for x
    x = 9,637,327.04/2,590.11
  6. Step 6: Final answer
    x = 3,720.82

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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.