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Finding the Fourth Proportional to 2,985.06, 4,456.11 and 2,768.79

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Solution

The fourth proportional to 2,985.06, 4,456.11 and 2,768.79 is: 4,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.06 : 4,456.11 = 2,768.79 : x
  2. Step 2: Convert to fraction form
    2,985.06/4,456.11 = 2,768.79/x
  3. Step 3: Cross multiply
    2,985.06x = 4,456.11 × 2,768.79
  4. Step 4: Simplify right side
    2,985.06x = 12,338,032.81
  5. Step 5: Solve for x
    x = 12,338,032.81/2,985.06
  6. Step 6: Final answer
    x = 4,133.26

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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.