Home / 5,125.68-7,071.98-2,886.77

Finding the Fourth Proportional to 5,125.68, 7,071.98 and 2,886.77

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Solution

The fourth proportional to 5,125.68, 7,071.98 and 2,886.77 is: 3,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.68 : 7,071.98 = 2,886.77 : x
  2. Step 2: Convert to fraction form
    5,125.68/7,071.98 = 2,886.77/x
  3. Step 3: Cross multiply
    5,125.68x = 7,071.98 × 2,886.77
  4. Step 4: Simplify right side
    5,125.68x = 20,415,182.95
  5. Step 5: Solve for x
    x = 20,415,182.95/5,125.68
  6. Step 6: Final answer
    x = 3,982.92

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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.