Home / 5,125.10-7,072.07-2,886.77

Finding the Fourth Proportional to 5,125.10, 7,072.07 and 2,886.77

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Solution

The fourth proportional to 5,125.10, 7,072.07 and 2,886.77 is: 3,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.10 : 7,072.07 = 2,886.77 : x
  2. Step 2: Convert to fraction form
    5,125.10/7,072.07 = 2,886.77/x
  3. Step 3: Cross multiply
    5,125.10x = 7,072.07 × 2,886.77
  4. Step 4: Simplify right side
    5,125.10x = 20,415,442.76
  5. Step 5: Solve for x
    x = 20,415,442.76/5,125.10
  6. Step 6: Final answer
    x = 3,983.43

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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.