Home / 2,636.53-3,955.45-1,858.05

Finding the Fourth Proportional to 2,636.53, 3,955.45 and 1,858.05

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Solution

The fourth proportional to 2,636.53, 3,955.45 and 1,858.05 is: 2,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.53 : 3,955.45 = 1,858.05 : x
  2. Step 2: Convert to fraction form
    2,636.53/3,955.45 = 1,858.05/x
  3. Step 3: Cross multiply
    2,636.53x = 3,955.45 × 1,858.05
  4. Step 4: Simplify right side
    2,636.53x = 7,349,423.87
  5. Step 5: Solve for x
    x = 7,349,423.87/2,636.53
  6. Step 6: Final answer
    x = 2,787.54

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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.