Home / 1,443.45-2,000.33-1,415.76

Finding the Fourth Proportional to 1,443.45, 2,000.33 and 1,415.76

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Solution

The fourth proportional to 1,443.45, 2,000.33 and 1,415.76 is: 1,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.45 : 2,000.33 = 1,415.76 : x
  2. Step 2: Convert to fraction form
    1,443.45/2,000.33 = 1,415.76/x
  3. Step 3: Cross multiply
    1,443.45x = 2,000.33 × 1,415.76
  4. Step 4: Simplify right side
    1,443.45x = 2,831,990.28
  5. Step 5: Solve for x
    x = 2,831,990.28/1,443.45
  6. Step 6: Final answer
    x = 1,961.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.