Home / 5,146.45-7,102.11-2,788.59

Finding the Fourth Proportional to 5,146.45, 7,102.11 and 2,788.59

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Solution

The fourth proportional to 5,146.45, 7,102.11 and 2,788.59 is: 3,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.45 : 7,102.11 = 2,788.59 : x
  2. Step 2: Convert to fraction form
    5,146.45/7,102.11 = 2,788.59/x
  3. Step 3: Cross multiply
    5,146.45x = 7,102.11 × 2,788.59
  4. Step 4: Simplify right side
    5,146.45x = 19,804,910.02
  5. Step 5: Solve for x
    x = 19,804,910.02/5,146.45
  6. Step 6: Final answer
    x = 3,848.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.