Home / 5,124.77-7,072.08-2,886.61

Finding the Fourth Proportional to 5,124.77, 7,072.08 and 2,886.61

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Solution

The fourth proportional to 5,124.77, 7,072.08 and 2,886.61 is: 3,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.77 : 7,072.08 = 2,886.61 : x
  2. Step 2: Convert to fraction form
    5,124.77/7,072.08 = 2,886.61/x
  3. Step 3: Cross multiply
    5,124.77x = 7,072.08 × 2,886.61
  4. Step 4: Simplify right side
    5,124.77x = 20,414,301.49
  5. Step 5: Solve for x
    x = 20,414,301.49/5,124.77
  6. Step 6: Final answer
    x = 3,983.46

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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.