Home / 2,461.32-3,685.91-1,908.90

Finding the Fourth Proportional to 2,461.32, 3,685.91 and 1,908.90

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Solution

The fourth proportional to 2,461.32, 3,685.91 and 1,908.90 is: 2,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.32 : 3,685.91 = 1,908.90 : x
  2. Step 2: Convert to fraction form
    2,461.32/3,685.91 = 1,908.90/x
  3. Step 3: Cross multiply
    2,461.32x = 3,685.91 × 1,908.90
  4. Step 4: Simplify right side
    2,461.32x = 7,036,024.05
  5. Step 5: Solve for x
    x = 7,036,024.05/2,461.32
  6. Step 6: Final answer
    x = 2,858.64

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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.