Home / 5,110.11-7,051.74-2,985.77

Finding the Fourth Proportional to 5,110.11, 7,051.74 and 2,985.77

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Solution

The fourth proportional to 5,110.11, 7,051.74 and 2,985.77 is: 4,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.11 : 7,051.74 = 2,985.77 : x
  2. Step 2: Convert to fraction form
    5,110.11/7,051.74 = 2,985.77/x
  3. Step 3: Cross multiply
    5,110.11x = 7,051.74 × 2,985.77
  4. Step 4: Simplify right side
    5,110.11x = 21,054,838.48
  5. Step 5: Solve for x
    x = 21,054,838.48/5,110.11
  6. Step 6: Final answer
    x = 4,120.23

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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.