Home / 6,971.52-9,620.88-3,827.76

Finding the Fourth Proportional to 6,971.52, 9,620.88 and 3,827.76

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Solution

The fourth proportional to 6,971.52, 9,620.88 and 3,827.76 is: 5,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.52 : 9,620.88 = 3,827.76 : x
  2. Step 2: Convert to fraction form
    6,971.52/9,620.88 = 3,827.76/x
  3. Step 3: Cross multiply
    6,971.52x = 9,620.88 × 3,827.76
  4. Step 4: Simplify right side
    6,971.52x = 36,826,419.63
  5. Step 5: Solve for x
    x = 36,826,419.63/6,971.52
  6. Step 6: Final answer
    x = 5,282.41

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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.