Home / 2,971.99-4,455.56-1,122.05

Finding the Fourth Proportional to 2,971.99, 4,455.56 and 1,122.05

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Solution

The fourth proportional to 2,971.99, 4,455.56 and 1,122.05 is: 1,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.99 : 4,455.56 = 1,122.05 : x
  2. Step 2: Convert to fraction form
    2,971.99/4,455.56 = 1,122.05/x
  3. Step 3: Cross multiply
    2,971.99x = 4,455.56 × 1,122.05
  4. Step 4: Simplify right side
    2,971.99x = 4,999,355.49
  5. Step 5: Solve for x
    x = 4,999,355.49/2,971.99
  6. Step 6: Final answer
    x = 1,682.16

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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.