Home / 2,639.55-3,644.03-1,801.50

Finding the Fourth Proportional to 2,639.55, 3,644.03 and 1,801.50

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Solution

The fourth proportional to 2,639.55, 3,644.03 and 1,801.50 is: 2,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.55 : 3,644.03 = 1,801.50 : x
  2. Step 2: Convert to fraction form
    2,639.55/3,644.03 = 1,801.50/x
  3. Step 3: Cross multiply
    2,639.55x = 3,644.03 × 1,801.50
  4. Step 4: Simplify right side
    2,639.55x = 6,564,720.05
  5. Step 5: Solve for x
    x = 6,564,720.05/2,639.55
  6. Step 6: Final answer
    x = 2,487.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.