Home / 2,487.10-3,733.05-2,122.30

Finding the Fourth Proportional to 2,487.10, 3,733.05 and 2,122.30

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Solution

The fourth proportional to 2,487.10, 3,733.05 and 2,122.30 is: 3,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.10 : 3,733.05 = 2,122.30 : x
  2. Step 2: Convert to fraction form
    2,487.10/3,733.05 = 2,122.30/x
  3. Step 3: Cross multiply
    2,487.10x = 3,733.05 × 2,122.30
  4. Step 4: Simplify right side
    2,487.10x = 7,922,652.02
  5. Step 5: Solve for x
    x = 7,922,652.02/2,487.10
  6. Step 6: Final answer
    x = 3,185.50

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1.5x scale

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.