Home / 2,971.68-4,455.98-1,305.12

Finding the Fourth Proportional to 2,971.68, 4,455.98 and 1,305.12

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Solution

The fourth proportional to 2,971.68, 4,455.98 and 1,305.12 is: 1,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.68 : 4,455.98 = 1,305.12 : x
  2. Step 2: Convert to fraction form
    2,971.68/4,455.98 = 1,305.12/x
  3. Step 3: Cross multiply
    2,971.68x = 4,455.98 × 1,305.12
  4. Step 4: Simplify right side
    2,971.68x = 5,815,588.62
  5. Step 5: Solve for x
    x = 5,815,588.62/2,971.68
  6. Step 6: Final answer
    x = 1,957.00

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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.