Home / 2,102.84-3,137.28-2,027.20

Finding the Fourth Proportional to 2,102.84, 3,137.28 and 2,027.20

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Solution

The fourth proportional to 2,102.84, 3,137.28 and 2,027.20 is: 3,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.84 : 3,137.28 = 2,027.20 : x
  2. Step 2: Convert to fraction form
    2,102.84/3,137.28 = 2,027.20/x
  3. Step 3: Cross multiply
    2,102.84x = 3,137.28 × 2,027.20
  4. Step 4: Simplify right side
    2,102.84x = 6,359,894.02
  5. Step 5: Solve for x
    x = 6,359,894.02/2,102.84
  6. Step 6: Final answer
    x = 3,024.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.