Home / 2,124.06-3,171.98-2,101.20

Finding the Fourth Proportional to 2,124.06, 3,171.98 and 2,101.20

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Solution

The fourth proportional to 2,124.06, 3,171.98 and 2,101.20 is: 3,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.06 : 3,171.98 = 2,101.20 : x
  2. Step 2: Convert to fraction form
    2,124.06/3,171.98 = 2,101.20/x
  3. Step 3: Cross multiply
    2,124.06x = 3,171.98 × 2,101.20
  4. Step 4: Simplify right side
    2,124.06x = 6,664,953.87
  5. Step 5: Solve for x
    x = 6,664,953.87/2,124.06
  6. Step 6: Final answer
    x = 3,137.84

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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.