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Finding the Fourth Proportional to 5,877.77, 8,818.46 and 1,981.85

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Solution

The fourth proportional to 5,877.77, 8,818.46 and 1,981.85 is: 2,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,877.77 : 8,818.46 = 1,981.85 : x
  2. Step 2: Convert to fraction form
    5,877.77/8,818.46 = 1,981.85/x
  3. Step 3: Cross multiply
    5,877.77x = 8,818.46 × 1,981.85
  4. Step 4: Simplify right side
    5,877.77x = 17,476,855.04
  5. Step 5: Solve for x
    x = 17,476,855.04/5,877.77
  6. Step 6: Final answer
    x = 2,973.38

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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.