Home / 2,981.05-4,458.45-2,654.30

Finding the Fourth Proportional to 2,981.05, 4,458.45 and 2,654.30

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Solution

The fourth proportional to 2,981.05, 4,458.45 and 2,654.30 is: 3,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.05 : 4,458.45 = 2,654.30 : x
  2. Step 2: Convert to fraction form
    2,981.05/4,458.45 = 2,654.30/x
  3. Step 3: Cross multiply
    2,981.05x = 4,458.45 × 2,654.30
  4. Step 4: Simplify right side
    2,981.05x = 11,834,063.84
  5. Step 5: Solve for x
    x = 11,834,063.84/2,981.05
  6. Step 6: Final answer
    x = 3,969.77

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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.