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Finding the Fourth Proportional to 6,558.72, 9,837.86 and 1,878.77

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Solution

The fourth proportional to 6,558.72, 9,837.86 and 1,878.77 is: 2,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.72 : 9,837.86 = 1,878.77 : x
  2. Step 2: Convert to fraction form
    6,558.72/9,837.86 = 1,878.77/x
  3. Step 3: Cross multiply
    6,558.72x = 9,837.86 × 1,878.77
  4. Step 4: Simplify right side
    6,558.72x = 18,483,063.76
  5. Step 5: Solve for x
    x = 18,483,063.76/6,558.72
  6. Step 6: Final answer
    x = 2,818.09

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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.