Home / 5,124.76-7,072.18-2,886.66

Finding the Fourth Proportional to 5,124.76, 7,072.18 and 2,886.66

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Solution

The fourth proportional to 5,124.76, 7,072.18 and 2,886.66 is: 3,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.76 : 7,072.18 = 2,886.66 : x
  2. Step 2: Convert to fraction form
    5,124.76/7,072.18 = 2,886.66/x
  3. Step 3: Cross multiply
    5,124.76x = 7,072.18 × 2,886.66
  4. Step 4: Simplify right side
    5,124.76x = 20,414,971.90
  5. Step 5: Solve for x
    x = 20,414,971.90/5,124.76
  6. Step 6: Final answer
    x = 3,983.60

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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.