Home / 2,500.10-3,450.28-1,438.20

Finding the Fourth Proportional to 2,500.10, 3,450.28 and 1,438.20

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Solution

The fourth proportional to 2,500.10, 3,450.28 and 1,438.20 is: 1,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.10 : 3,450.28 = 1,438.20 : x
  2. Step 2: Convert to fraction form
    2,500.10/3,450.28 = 1,438.20/x
  3. Step 3: Cross multiply
    2,500.10x = 3,450.28 × 1,438.20
  4. Step 4: Simplify right side
    2,500.10x = 4,962,192.70
  5. Step 5: Solve for x
    x = 4,962,192.70/2,500.10
  6. Step 6: Final answer
    x = 1,984.80

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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.