Home / 2,137.32-3,205.80-2,088.72

Finding the Fourth Proportional to 2,137.32, 3,205.80 and 2,088.72

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Solution

The fourth proportional to 2,137.32, 3,205.80 and 2,088.72 is: 3,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.32 : 3,205.80 = 2,088.72 : x
  2. Step 2: Convert to fraction form
    2,137.32/3,205.80 = 2,088.72/x
  3. Step 3: Cross multiply
    2,137.32x = 3,205.80 × 2,088.72
  4. Step 4: Simplify right side
    2,137.32x = 6,696,018.58
  5. Step 5: Solve for x
    x = 6,696,018.58/2,137.32
  6. Step 6: Final answer
    x = 3,132.90

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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.