Home / 2,477.90-3,697.71-2,201.79

Finding the Fourth Proportional to 2,477.90, 3,697.71 and 2,201.79

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Solution

The fourth proportional to 2,477.90, 3,697.71 and 2,201.79 is: 3,285.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.90 : 3,697.71 = 2,201.79 : x
  2. Step 2: Convert to fraction form
    2,477.90/3,697.71 = 2,201.79/x
  3. Step 3: Cross multiply
    2,477.90x = 3,697.71 × 2,201.79
  4. Step 4: Simplify right side
    2,477.90x = 8,141,586.51
  5. Step 5: Solve for x
    x = 8,141,586.51/2,477.90
  6. Step 6: Final answer
    x = 3,285.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.