Home / 8,780.72-13,166.94-2,935.76

Finding the Fourth Proportional to 8,780.72, 13,166.94 and 2,935.76

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Solution

The fourth proportional to 8,780.72, 13,166.94 and 2,935.76 is: 4,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.72 : 13,166.94 = 2,935.76 : x
  2. Step 2: Convert to fraction form
    8,780.72/13,166.94 = 2,935.76/x
  3. Step 3: Cross multiply
    8,780.72x = 13,166.94 × 2,935.76
  4. Step 4: Simplify right side
    8,780.72x = 38,654,975.77
  5. Step 5: Solve for x
    x = 38,654,975.77/8,780.72
  6. Step 6: Final answer
    x = 4,402.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.